56517525 has 36 divisors (see below), whose sum is σ = 101749440. Its totient is φ = 29988000.

The previous prime is 56517521. The next prime is 56517563. The reversal of 56517525 is 52571565.

It is a happy number.

56517525 is a `hidden beast` number, since 565 + 1 + 75 + 25 = 666.

It is not a de Polignac number, because 56517525 - 2² = 56517521 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 56517525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56517521) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 53250 + ... + 54300.

Almost surely, 2^56517525 is an apocalyptic number.

It is an amenable number.

56517525 is a deficient number, since it is larger than the sum of its proper divisors (45231915).

56517525 is a wasteful number, since it uses less digits than its factorization.

56517525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306 (or 1298 counting only the distinct ones).

The product of its digits is 52500, while the sum is 36.

The square root of 56517525 is about 7517.8138444630. The cubic root of 56517525 is about 383.7611837008.

The spelling of 56517525 in words is "fifty-six million, five hundred seventeen thousand, five hundred twenty-five".