56579998000 has 80 divisors (see below), whose sum is σ = 138165487200. Its totient is φ = 22407840000.

The previous prime is 56579997979. The next prime is 56579998019. The reversal of 56579998000 is 89997565.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61951 + ... + 342049.

It is an arithmetic number, because the mean of its divisors is an integer number (1727068590).

Almost surely, 2^56579998000 is an apocalyptic number.

56579998000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56579998000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69082743600).

56579998000 is an abundant number, since it is smaller than the sum of its proper divisors (81585489200).

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

56579998000 is a wasteful number, since it uses less digits than its factorization.

56579998000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280223 (or 280207 counting only the distinct ones).

The product of its (nonzero) digits is 6123600, while the sum is 58.

The spelling of 56579998000 in words is "fifty-six billion, five hundred seventy-nine million, nine hundred ninety-eight thousand".