56912977 has 4 divisors (see below), whose sum is σ = 62086896. Its totient is φ = 51739060.

The previous prime is 56912969. The next prime is 56912983. The reversal of 56912977 is 77921965.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 56912977 - 2³ = 56912969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56912077) 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, 2586943 + ... + 2586964.

It is an arithmetic number, because the mean of its divisors is an integer number (15521724).

Almost surely, 2^56912977 is an apocalyptic number.

It is an amenable number.

56912977 is a deficient number, since it is larger than the sum of its proper divisors (5173919).

56912977 is a wasteful number, since it uses less digits than its factorization.

56912977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5173918.

The product of its digits is 238140, while the sum is 46.

The square root of 56912977 is about 7544.0689949125. The cubic root of 56912977 is about 384.6541606741.

It can be divided in two parts, 5691 and 2977, that added together give a palindrome (8668).

The spelling of 56912977 in words is "fifty-six million, nine hundred twelve thousand, nine hundred seventy-seven".