12957525 has 72 divisors (see below), whose sum is σ = 27984320. Its totient is φ = 5598720.

The previous prime is 12957509. The next prime is 12957541. The reversal of 12957525 is 52575921.

12957525 is a `hidden beast` number, since 129 + 5 + 7 + 525 = 666.

It is an interprime number because it is at equal distance from previous prime (12957509) and next prime (12957541).

It is not a de Polignac number, because 12957525 - 2⁴ = 12957509 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12957525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 29709 + ... + 30141.

Almost surely, 2^12957525 is an apocalyptic number.

12957525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12957525 is an abundant number, since it is smaller than the sum of its proper divisors (15026795).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12957525 is a wasteful number, since it uses less digits than its factorization.

12957525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 467 counting only the distinct ones).

The product of its digits is 31500, while the sum is 36.

The square root of 12957525 is about 3599.6562335868. The cubic root of 12957525 is about 234.8771048987.

It can be divided in two parts, 129575 and 25, that added together give a square (129600 = 360²).

The spelling of 12957525 in words is "twelve million, nine hundred fifty-seven thousand, five hundred twenty-five".