56257072 has 20 divisors (see below), whose sum is σ = 111534280. Its totient is φ = 27474048.

The previous prime is 56257027. The next prime is 56257087. The reversal of 56257072 is 27075265.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40197 + ... + 41572.

It is an arithmetic number, because the mean of its divisors is an integer number (5576714).

Almost surely, 2^56257072 is an apocalyptic number.

It is an amenable number.

56257072 is a deficient number, since it is larger than the sum of its proper divisors (55277208).

56257072 is a wasteful number, since it uses less digits than its factorization.

56257072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81820 (or 81814 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 56257072 is about 7500.4714518489. The cubic root of 56257072 is about 383.1707728285.

The spelling of 56257072 in words is "fifty-six million, two hundred fifty-seven thousand, seventy-two".