56877001931 has 2 divisors, whose sum is σ = 56877001932. Its totient is φ = 56877001930.

The previous prime is 56877001903. The next prime is 56877001957. The reversal of 56877001931 is 13910077865.

56877001931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56877001931 - 2¹⁴ = 56876985547 is a prime.

It is a super-2 number, since 2×56877001931² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56877001331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28438500965 + 28438500966.

It is an arithmetic number, because the mean of its divisors is an integer number (28438500966).

Almost surely, 2^56877001931 is an apocalyptic number.

56877001931 is a deficient number, since it is larger than the sum of its proper divisors (1).

56877001931 is an equidigital number, since it uses as much as digits as its factorization.

56877001931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 47.

The spelling of 56877001931 in words is "fifty-six billion, eight hundred seventy-seven million, one thousand, nine hundred thirty-one".