56877001957 has 2 divisors, whose sum is σ = 56877001958. Its totient is φ = 56877001956.

The previous prime is 56877001931. The next prime is 56877001963. The reversal of 56877001957 is 75910077865.

It is a happy number.

56877001957 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 can be written as a sum of positive squares in only one way, i.e., 45213217956 + 11663784001 = 212634^2 + 107999^2 .

It is a cyclic number.

It is not a de Polignac number, because 56877001957 - 2³¹ = 54729518309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56877001898 and 56877001907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56877001057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28438500978 + 28438500979.

It is an arithmetic number, because the mean of its divisors is an integer number (28438500979).

Almost surely, 2^56877001957 is an apocalyptic number.

It is an amenable number.

56877001957 is a deficient number, since it is larger than the sum of its proper divisors (1).

56877001957 is an equidigital number, since it uses as much as digits as its factorization.

56877001957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3704400, while the sum is 55.

The spelling of 56877001957 in words is "fifty-six billion, eight hundred seventy-seven million, one thousand, nine hundred fifty-seven".