Properties of the Number 25225

Twenty-Five Thousand Two Hundred Twenty-Five

Basics

Value: 25224 → 25225 → 25226

Parity: odd

Prime: No

Previous Prime: 25219

Next Prime: 25229

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 5 ² × 1009

Divisors: 1, 5, 25, 1009, 5045, 25225

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110001010001001

Octal: 61211

Duodecimal: 12721

Hexadecimal: 6289

Square: 636300625

Square Root: 158.8238017426859

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

Numbers using only the digits 2 and 5, that are both curved and straight. A72961

T(n,k)=Rolling icosahedron footprints: number of nXk 0..11 arrays starting with 0 where 0..11 label vertices of an icosahedron and every array movement to a horizontal, diagonal or antidiagonal neighbor moves along an icosahedral edge. A223233

a(n) is the concatenation of n and 9n. A9474

Number of Lyndon words (aperiodic necklaces) with 3n beads of 3 colors, n beads of each color. One color labeled, the other two unlabeled. A29808

Number of ordered triples (w,x,y) with all terms in {1,...,n} and 2w²>=x²+y². A211803

a(n) = coefficient of xⁿ*yⁿ/n in log( ∏_n>=1 1/(1 - (x^2·n - y^2·n)/(x - y)) ), for n >= 1. A322191

Witt vector·3!/3!. A6178

Numbers k such that 95·2^k+1 is prime. A32397

Numbers k such that k and k² use only the digits 0, 2, 3, 5 and 6. A136888

"Early bird" squares: write the square numbers in a string 149162536496481100... . Sequence gives numbers k such that k² occurs in the string ahead of its natural place. A181585