56558601738 has 24 divisors (see below), whose sum is σ = 122683401828. Its totient is φ = 18831364992.

The previous prime is 56558601689. The next prime is 56558601739. The reversal of 56558601738 is 83710685565.

56558601738 is a `hidden beast` number, since 56 + 5 + 586 + 0 + 1 + 7 + 3 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 53626054329 + 2932547409 = 231573^2 + 54153^2 .

It is not an unprimeable number, because it can be changed into a prime (56558601739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1775631 + ... + 1807202.

Almost surely, 2^56558601738 is an apocalyptic number.

56558601738 is an abundant number, since it is smaller than the sum of its proper divisors (66124800090).

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

56558601738 is a wasteful number, since it uses less digits than its factorization.

56558601738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3583718 (or 3583715 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 54.

The spelling of 56558601738 in words is "fifty-six billion, five hundred fifty-eight million, six hundred one thousand, seven hundred thirty-eight".