Properties of the Number 8525

Eight Thousand Five Hundred Twenty-Five

Basics

Value: 8524 → 8525 → 8526

Parity: odd

Prime: No

Previous Prime: 8521

Next Prime: 8527

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 ² × 11 × 31

Divisors: 1, 5, 11, 25, 31, 55, 155, 275, 341, 775

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000101001101

Octal: 20515

Duodecimal: 4B25

Hexadecimal: 214d

Square: 72675625

Square Root: 92.33092656309694

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 is a square whose digits occur with an equal minimum frequency of 2. A52049

Numbers k > 1 such that, in base 4, k and k² contain the same digits in the same proportion. A61658

a(n) = ∑_i=0..n A047080(i,n-i). A47084

a(n) = (1/6)*(2·n - 3)*(n + 2)*(n + 1). A58373

Square number array read by antidiagonals. A84061

a(n) = (7ⁿ + 3ⁿ)/2. A81336

First superdiagonal of number array A084061. A84095

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A318091

Digitally balanced numbers in base 6: equal numbers of 0's, 1's, ..., 5's. A49357

a(n) = n²*(n+1)*(3·n+1)/4. A213827