On the Number 25

The 13th odd number = 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25

The 5th square number= 1, 4, 9, 16, 25

Sum of the first 5 odd numbers = 1 + 3 + 5 + 7 + 9 = 25

Sum of the 3rd and 4th square numbers = 3 + 4 = 9 + 16 = 25
(Pythagorean 3-4-5 right triangle)

Magic Square of Mars has 25 squares
(side sum = 65, total sum = 325)

17 24 1 8 15

23 5 7 14 16

4 6 13 20 22

10 12 19 21 3

11 18 25 2 9

Cactus with 25 lines
radiating from its center

Richard Phillips, Numbers (1994)

One quarter = 25%

One U.S. quarter = 25¢

Christmas Day is December 25

10)

Silver wedding anniversary celebrates 25 years of marriage

11)

Atomic Number of Manganese (Mn) = 25
(25 protons & 25 electrons)

12)

Number of chapters in II Kings = 25

13)

The 25th day of the year = January 25
Scottish poet Robert Burns (1759-1796) was born on this day.

14)

The 89th & 90th digits of pi = 25

15)

The 213th & 214th digits of phi = 25

16)

Pachisi, Hindi for 25, is the National Game of India

17)

The Sun rotates once in 25 days near the poles
and about 30 days near its equator.

18)

25th Hexagram of the I Ching:
Wu Wang / Innocence (The Unexpected); The Image:
Under heaven thunder rolls:
All things attain the natural state of innocence.
Thus the kings of old,
Rich in virtue, and in harmony with the time,
Fostered and nourished all beings.

19)

Lao Tzu, Tao Te Ching, Verse 25:
Man models himself after Earth
Earth models itself after Heaven
Heaven models itself after the Tao
And the Tao is full and complete.

20)

Tree of Life from the 25th Book of Enoch:
On the 7th mountain, Enoch saw the beautiful fragrant Tree of Life and said “I wish to know about everything, but especially about the Tree of Life.” The Archangel Michael replied “Its fruit shall be given to the righteous and holy: it shall be transplanted to the holy place, to the Temple of the Lord, the Eternal King.”
— Book of Enoch XXV.2 (circa 105 B.C.-64 B.C.)

21)

Section 25 of Record of the Chan Master "Gate of the Clouds":
Someone asked, "What is the place from which all buddhas come?
Master Yunmen said, "Next question, please!"
Master Yun-Men (864-949),
Record of the Chan Master "Gate of the Clouds"
translated by Urs App, Kodansha International, NY & Tokyo, 1994, p. 96

22)

Chou Tun-Yi (1017-1073), Penetrating Book of Changes, Ch. 25:
“Moral principles become valuable and honorable when they are possessed by us through the help of teachers and friends.”

23`)

Verse 25 of Drg-Drsya-Viveka ("Seer-Seen Discernment")
by Bharati Tirtha (c. 1328-1380): “I am Sat-Chit-Ananda (Being-Consciousness-Bliss), unattached, self-luminous,
and free from duality.”

24)

The 25th Hour is a MGM film (1967) with screen-play
by Henri Verneuil based on C. Virgil Gheorghiu's novel (Knopf, 1950)
(Andrew A. Aros, A Title Guide to the Talkies, 1964-1974, Scarecrow Press, 1977, p. 262)

25)

Numerology: words whose letters add up to 25

BRAHMA: 2 + 9 + 1 + 8 + 4 + 1 = 25

EARTH: 5 + 1 + 9 + 2 + 8 = 25

HEART: 8 + 5 + 1 + 9 + 2 = 25

PEARL: 7 + 5 + 1 + 9 + 3 = 25

ENNEAD: 5 + 5 + 5 + 5 + 1 + 4 = 25

TIMAEUS: 2 + 9 + 4 + 1 + 5 + 3 + 1 = 25

SIXTY: 1 + 9 + 6 + 2 + 7 = 25