56608371657 has 6 divisors (see below), whose sum is σ = 81767647962. Its totient is φ = 37738914432.

The previous prime is 56608371653. The next prime is 56608371661. The reversal of 56608371657 is 75617380665.

56608371657 is a `hidden beast` number, since 566 + 0 + 8 + 3 + 71 + 6 + 5 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (56608371653) and next prime (56608371661).

It can be written as a sum of positive squares in only one way, i.e., 53218337481 + 3390034176 = 230691^2 + 58224^2 .

It is not a de Polignac number, because 56608371657 - 2² = 56608371653 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56608371653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3144909528 + ... + 3144909545.

It is an arithmetic number, because the mean of its divisors is an integer number (13627941327).

Almost surely, 2^56608371657 is an apocalyptic number.

It is an amenable number.

56608371657 is a deficient number, since it is larger than the sum of its proper divisors (25159276305).

56608371657 is a wasteful number, since it uses less digits than its factorization.

56608371657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6289819079 (or 6289819076 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 54.

The spelling of 56608371657 in words is "fifty-six billion, six hundred eight million, three hundred seventy-one thousand, six hundred fifty-seven".