56257077 has 4 divisors (see below), whose sum is σ = 75009440. Its totient is φ = 37504716.

The previous prime is 56257027. The next prime is 56257087. The reversal of 56257077 is 77075265.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 56257077 - 2¹⁴ = 56240693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56257007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9376177 + ... + 9376182.

It is an arithmetic number, because the mean of its divisors is an integer number (18752360).

Almost surely, 2^56257077 is an apocalyptic number.

It is an amenable number.

56257077 is a deficient number, since it is larger than the sum of its proper divisors (18752363).

56257077 is a wasteful number, since it uses less digits than its factorization.

56257077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18752362.

The product of its (nonzero) digits is 102900, while the sum is 39.

The square root of 56257077 is about 7500.4717851613. The cubic root of 56257077 is about 383.1707841803.

The spelling of 56257077 in words is "fifty-six million, two hundred fifty-seven thousand, seventy-seven".