56056538688 has 28 divisors (see below), whose sum is σ = 148316259120. Its totient is φ = 18685512832.

The previous prime is 56056538647. The next prime is 56056538737. The reversal of 56056538688 is 88683565065.

It is a super-2 number, since 2×56056538688² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145980378 + ... + 145980761.

Almost surely, 2^56056538688 is an apocalyptic number.

It is an amenable number.

56056538688 is an abundant number, since it is smaller than the sum of its proper divisors (92259720432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56056538688 is a wasteful number, since it uses less digits than its factorization.

56056538688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291961154 (or 291961144 counting only the distinct ones).

The product of its (nonzero) digits is 41472000, while the sum is 60.

The spelling of 56056538688 in words is "fifty-six billion, fifty-six million, five hundred thirty-eight thousand, six hundred eighty-eight".