56371257 has 24 divisors (see below), whose sum is σ = 83116800. Its totient is φ = 36808128.

The previous prime is 56371207. The next prime is 56371267. The reversal of 56371257 is 75217365.

56371257 is a `hidden beast` number, since 5 + 637 + 12 + 5 + 7 = 666.

It is not a de Polignac number, because 56371257 - 2¹⁰ = 56370233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56371207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156844 + ... + 157202.

It is an arithmetic number, because the mean of its divisors is an integer number (3463200).

Almost surely, 2^56371257 is an apocalyptic number.

It is an amenable number.

56371257 is a deficient number, since it is larger than the sum of its proper divisors (26745543).

56371257 is a wasteful number, since it uses less digits than its factorization.

56371257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 674 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 56371257 is about 7508.0794481678. The cubic root of 56371257 is about 383.4298382525.

The spelling of 56371257 in words is "fifty-six million, three hundred seventy-one thousand, two hundred fifty-seven".