56558433018 has 8 divisors (see below), whose sum is σ = 113116866048. Its totient is φ = 18852811004.

The previous prime is 56558433007. The next prime is 56558433049. The reversal of 56558433018 is 81033485565.

It is a sphenic number, since it is the product of 3 distinct primes.

56558433018 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4713202746 + ... + 4713202757.

It is an arithmetic number, because the mean of its divisors is an integer number (14139608256).

Almost surely, 2^56558433018 is an apocalyptic number.

56558433018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

56558433018 is a wasteful number, since it uses less digits than its factorization.

56558433018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9426405508.

The product of its (nonzero) digits is 1728000, while the sum is 48.

The spelling of 56558433018 in words is "fifty-six billion, five hundred fifty-eight million, four hundred thirty-three thousand, eighteen".