12642525 has 72 divisors (see below), whose sum is σ = 27081600. Its totient is φ = 5512320.

The previous prime is 12642517. The next prime is 12642533. The reversal of 12642525 is 52524621.

12642525 is a `hidden beast` number, since 12 + 642 + 5 + 2 + 5 = 666.

12642525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12642517) and next prime (12642533).

It is not a de Polignac number, because 12642525 - 2³ = 12642517 is a prime.

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, 36051 + ... + 36399.

Almost surely, 2^12642525 is an apocalyptic number.

12642525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12642525 is an abundant number, since it is smaller than the sum of its proper divisors (14439075).

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

12642525 is a wasteful number, since it uses less digits than its factorization.

12642525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 387 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 12642525 is about 3555.6328550625. The cubic root of 12642525 is about 232.9581669511.

The spelling of 12642525 in words is "twelve million, six hundred forty-two thousand, five hundred twenty-five".