Properties of the Number 25526

Twenty-Five Thousand Five Hundred Twenty-Six

Basics

Value: 25525 → 25526 → 25527

Parity: even

Prime: No

Previous Prime: 25523

Next Prime: 25537

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 12763

Divisors: 1, 2, 12763, 25526

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 110001110110110

Octal: 61666

Duodecimal: 12932

Hexadecimal: 63b6

Square: 651576676

Square Root: 159.76858264377262

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

T(n,k)=Number of (n+2)X(k+2) binary arrays avoiding patterns 000 and 111 in rows, columns and nw-to-se diagonals. A202647

Integers k > 10577 such that the 'Reverse and Add!' trajectory of k joins the trajectory of 10577. A63434

Numbers k such that k and k² use only the digits 1, 2, 5, 6 and 7. A137004

Number of 4-step one space leftwards or up, two space rightwards or down asymmetric rook's tours on an n X n board summed over all starting positions. A187299

Number of (n+2) X 3 binary arrays avoiding patterns 000 and 111 in rows, columns and nw-to-se diagonals. A202640

Number of (n+2)X9 binary arrays avoiding patterns 000 and 111 in rows, columns and nw-to-se diagonals. A202646

Composite numbers k such that φ(x) = ψ(k)*φ(k) has no solution. A292714

Numbers having four 6's in base 8. A43448

Primes for which -15 is a primitive root. A105887

Number of 3Xn arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2. A221330