56757657 has 16 divisors (see below), whose sum is σ = 83378880. Its totient is φ = 34056000.

The previous prime is 56757637. The next prime is 56757661. The reversal of 56757657 is 75675765.

It is not a de Polignac number, because 56757657 - 2¹¹ = 56755609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56757637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5182 + ... + 11847.

It is an arithmetic number, because the mean of its divisors is an integer number (5211180).

Almost surely, 2^56757657 is an apocalyptic number.

It is an amenable number.

56757657 is a deficient number, since it is larger than the sum of its proper divisors (26621223).

56757657 is a wasteful number, since it uses less digits than its factorization.

56757657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17144.

The product of its digits is 1543500, while the sum is 48.

The square root of 56757657 is about 7533.7677824579. The cubic root of 56757657 is about 384.3039246994.

The spelling of 56757657 in words is "fifty-six million, seven hundred fifty-seven thousand, six hundred fifty-seven".