Properties of the Number 25538

Twenty-Five Thousand Five Hundred Thirty-Eight

Basics

Value: 25537 → 25538 → 25539

Parity: even

Prime: No

Previous Prime: 25537

Next Prime: 25541

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 113 ²

Divisors: 1, 2, 113, 226, 12769, 25538

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 110001111000010

Octal: 61702

Duodecimal: 12942

Hexadecimal: 63c2

Square: 652189444

Square Root: 159.80613254815975

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

a(n) = 2·prime(n)². A79704

2·p², for p an odd prime. A143928

T(n,k)=1/8 the number of (n+1)X(k+1) 0..3 arrays with all 2X2 subblock sums the same. A184029

Positive integers k such that k | (15^k + 1). A15968

Record high values of A379248. A379294

Numbers of the form 2·p^e, with p an odd prime and e >= 2. A354929

1/8 the number of (n+1)X2 0..3 arrays with all 2X2 subblock sums the same. A184021

Number of 0..n arrays x(0..9) of 10 elements with zero 5th differences. A200446

1/8 the number of (n+1)X8 0..3 arrays with all 2X2 subblock sums the same. A184027

Numbers k such that k and k² are the sums of two nonzero squares in exactly two ways. A273293