Properties of the Number 2525

Two Thousand Five Hundred Twenty-Five

Basics

Value: 2524 → 2525 → 2526

Parity: odd

Prime: No

Previous Prime: 2521

Next Prime: 2531

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 5 ² × 101

Divisors: 1, 5, 25, 101, 505, 2525

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100111011101

Octal: 4735

Duodecimal: 1565

Hexadecimal: 9dd

Square: 6375625

Square Root: 50.24937810560445

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

Expansion of ∏_m>=1 (1 + m·q^m). A22629

a(n) = n*(4·n+1). A7742

Doublets: base-10 representation is the juxtaposition of two identical strings. A20338

Monotonic ordering of set S generated by these rules: if·and y are in S then x² + y² is in S, and 1 is in S. A192476

Expansion of g.f. x*(1 + 3·x)/((1 + x)*(1 - x)³). A35608

Numbers m that are the hypotenuse of exactly 7 distinct integer-sided right triangles, i.e., m² can be written as a sum of two squares in 7 ways. A97101

a(n) = 5·a(n-1) - a(n-2), with a(0) = 2, a(1) = 5. A3501

Integer part of decimal 'base-2 looking' numbers divided by their actual base-2 values (denominator of a(n) is n, numerator is n written in binary but read in decimal). A32532

In base-10 notation replace digits of n with their squared values (Version 1). A48385

Rectangular array A: first differences of row entries of array A294099, read by antidiagonals. A298675