57131756957 has 4 divisors (see below), whose sum is σ = 62325553056. Its totient is φ = 51937960860.

The previous prime is 57131756951. The next prime is 57131756977. The reversal of 57131756957 is 75965713175.

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 57131756957 - 2⁸ = 57131756701 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 (57131756951) 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, 2596898033 + ... + 2596898054.

It is an arithmetic number, because the mean of its divisors is an integer number (15581388264).

Almost surely, 2^57131756957 is an apocalyptic number.

It is an amenable number.

57131756957 is a deficient number, since it is larger than the sum of its proper divisors (5193796099).

57131756957 is a wasteful number, since it uses less digits than its factorization.

57131756957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5193796098.

The product of its digits is 6945750, while the sum is 56.

The spelling of 57131756957 in words is "fifty-seven billion, one hundred thirty-one million, seven hundred fifty-six thousand, nine hundred fifty-seven".