Properties of the Number 67525

Sixty-Seven Thousand Five Hundred Twenty-Five

Basics

Value: 67524 → 67525 → 67526

Parity: odd

Prime: No

Previous Prime: 67523

Next Prime: 67531

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 ² × 37 × 73

Divisors: 1, 5, 25, 37, 73, 185, 365, 925, 1825, 2701

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: Yes

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Representations

Binary: 10000011111000101

Octal: 203705

Duodecimal: 330B1

Hexadecimal: 107c5

Square: 4559625625

Square Root: 259.8557292037257

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) = 1² + 3² + 5² + 7² + ... + (2·n-1)² = n*(4·n² - 1)/3. A447

Dodecahedral numbers: a(n) = n*(3·n - 1)*(3·n - 2)/2. A6566

Integers that are Rhonda numbers to base 14. A100972

Odd tetrahedral numbers: a(n) = (4·n+1)*(4·n+2)*(4·n+3)/6. A15219

Binomial coefficients C(75,n). A17791

a(n) = (5·n + 3)*(5·n + 4)*(5·n + 5)/6. A300522

Binomial coefficients C(n,72). A17736

Number of 4-member subsets of [4·n] whose elements sum to a multiple of n. A318625

Tetrahedral numbers that are not divisible by any smaller tetrahedral number except 1. A318701