Properties of the Number 2025

Two Thousand Twenty-Five

Basics

Value: 2024 → 2025 → 2026

Parity: odd

Prime: No

Previous Prime: 2017

Next Prime: 2027

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 5 ²

Divisors: 1, 3, 5, 9, 15, 25, 27, 45, 75, 81

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 11111101001

Octal: 3751

Duodecimal: 1209

Hexadecimal: 7e9

Square: 4100625

Square Root: 45

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: Yes

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

The squares: a(n) = n². A290

Odd squares: a(n) = (2n+1)². Also centered octagonal numbers. A16754

Sum of first n cubes; or n-th triangular number squared. A537

Powerful numbers (A001694) that are not prime powers (A000961). A286708

Perfect powers of nonprimes (m^k where m is a nonprime positive integer and k >= 2). A131605

Square the entries of Pascal's triangle. A8459

Least number with exactly n odd divisors. A38547

Numbers of the form 3ⁱ*5^j with i, j >= 0. A3593

Product of the proper divisors of n. A7956

Triangle read by rows, the Bell transform of the quartic factorial numbers A007696(n+1) without column 0. A49029

We use cookies

Some cookies are essential for Natory to function, like keeping you signed in. We also use optional cookies to understand how the app is used and improve it over time. Learn more in our Privacy Policy. You can manage your preferences anytime.