56125272657 has 48 divisors (see below), whose sum is σ = 79992909888. Its totient is φ = 34968205440.

The previous prime is 56125272653. The next prime is 56125272667. The reversal of 56125272657 is 75627252165.

It is not a de Polignac number, because 56125272657 - 2² = 56125272653 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56125272653) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12517338 + ... + 12521820.

It is an arithmetic number, because the mean of its divisors is an integer number (1666518956).

Almost surely, 2^56125272657 is an apocalyptic number.

It is an amenable number.

56125272657 is a deficient number, since it is larger than the sum of its proper divisors (23867637231).

56125272657 is a wasteful number, since it uses less digits than its factorization.

56125272657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4670 (or 4627 counting only the distinct ones).

The product of its digits is 1764000, while the sum is 48.

The spelling of 56125272657 in words is "fifty-six billion, one hundred twenty-five million, two hundred seventy-two thousand, six hundred fifty-seven".