56251977 has 4 divisors (see below), whose sum is σ = 75002640. Its totient is φ = 37501316.

The previous prime is 56251969. The next prime is 56251981. The reversal of 56251977 is 77915265.

56251977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 56251977 - 2³ = 56251969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56251907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9375327 + ... + 9375332.

It is an arithmetic number, because the mean of its divisors is an integer number (18750660).

Almost surely, 2^56251977 is an apocalyptic number.

It is an amenable number.

56251977 is a deficient number, since it is larger than the sum of its proper divisors (18750663).

56251977 is a wasteful number, since it uses less digits than its factorization.

56251977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18750662.

The product of its digits is 132300, while the sum is 42.

The square root of 56251977 is about 7500.1317988419. The cubic root of 56251977 is about 383.1592050146.

The spelling of 56251977 in words is "fifty-six million, two hundred fifty-one thousand, nine hundred seventy-seven".