56558632078 has 16 divisors (see below), whose sum is σ = 91904566320. Its totient is φ = 26103982008.

The previous prime is 56558632063. The next prime is 56558632087. The reversal of 56558632078 is 87023685565.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6431500 + ... + 6440287.

It is an arithmetic number, because the mean of its divisors is an integer number (5744035395).

Almost surely, 2^56558632078 is an apocalyptic number.

56558632078 is a deficient number, since it is larger than the sum of its proper divisors (35345934242).

56558632078 is a wasteful number, since it uses less digits than its factorization.

56558632078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12871828 (or 12871802 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 55.

The spelling of 56558632078 in words is "fifty-six billion, five hundred fifty-eight million, six hundred thirty-two thousand, seventy-eight".