Properties of the Number 25425

Twenty-Five Thousand Four Hundred Twenty-Five

Basics

Value: 25424 → 25425 → 25426

Parity: odd

Prime: No

Previous Prime: 25423

Next Prime: 25439

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 ² × 113

Divisors: 1, 3, 5, 9, 15, 25, 45, 75, 113, 225

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: Yes

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110001101010001

Octal: 61521

Duodecimal: 12869

Hexadecimal: 6351

Square: 646430625

Square Root: 159.45218719101973

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

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: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Number of non-isomorphic square multiset partitions of weight n. A319616

a(n) = n²*(n² + 1)/2. A37270

Square array A(n,k), n>=0, k>=0, read by antidiagonals, where column k is the expansion of e.g.f. 1/(1 + k - ∑_j=1..k exp(j·x)). A320253

Cupolar numbers: a(n) = (n+1)*(5·n² + 7·n + 3)/3. A96000

Expansion of (∏_j>=1 (1-(-x)^j) - 1)⁹ in powers of x. A1487

Numbers with a minimum of 6 polygonal roots, excluding itself. A275256

Triangle, read by rows, where row n equals row n of matrix power A132844ⁿ for n>=0, where triangle A132844 is defined by: A132844(n,k) = T( [(n+k)/2], k) for n>=k>=0. A132845

Column 0 of triangle A132845. A132846

a(n) = sum of numbers from 1 to π(n), where π(n) = A007955(n). A184390

Number of 2 X 2 matrices with all terms in {0,1,...,n} and even trace. A210378