Properties of the Number 25

Twenty-Five

Basics

Value: 24 → 25 → 26

Parity: odd

Prime: No

Previous Prime: 23

Next Prime: 29

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 5 ²

Divisors: 1, 5, 25

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11001

Octal: 31

Duodecimal: 21

Hexadecimal: 19

Square: 625

Square Root: 5

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: Yes

Fermat Number: No

Cullen Number: Yes

OEIS Sequences

No sequences found.