56657474267 has 2 divisors, whose sum is σ = 56657474268. Its totient is φ = 56657474266.

The previous prime is 56657474249. The next prime is 56657474303. The reversal of 56657474267 is 76247475665.

56657474267 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56657474267 - 2²⁴ = 56640697051 is a prime.

It is not a weakly prime, because it can be changed into another prime (56657474567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28328737133 + 28328737134.

It is an arithmetic number, because the mean of its divisors is an integer number (28328737134).

Almost surely, 2^56657474267 is an apocalyptic number.

56657474267 is a deficient number, since it is larger than the sum of its proper divisors (1).

56657474267 is an equidigital number, since it uses as much as digits as its factorization.

56657474267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 59270400, while the sum is 59.

The spelling of 56657474267 in words is "fifty-six billion, six hundred fifty-seven million, four hundred seventy-four thousand, two hundred sixty-seven".