56689074558 has 40 divisors (see below), whose sum is σ = 127099446408. Its totient is φ = 18885360816.

The previous prime is 56689074511. The next prime is 56689074571. The reversal of 56689074558 is 85547098665.

56689074558 is a `hidden beast` number, since 5 + 6 + 6 + 8 + 9 + 0 + 74 + 558 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 56689074495 and 56689074504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 179785 + ... + 381707.

Almost surely, 2^56689074558 is an apocalyptic number.

56689074558 is an abundant number, since it is smaller than the sum of its proper divisors (70410371850).

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

56689074558 is a wasteful number, since it uses less digits than its factorization.

56689074558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203670 (or 203661 counting only the distinct ones).

The product of its (nonzero) digits is 72576000, while the sum is 63.

The spelling of 56689074558 in words is "fifty-six billion, six hundred eighty-nine million, seventy-four thousand, five hundred fifty-eight".