56199680 has 80 divisors (see below), whose sum is σ = 139578120. Its totient is φ = 21676032.

The previous prime is 56199679. The next prime is 56199691. The reversal of 56199680 is 8699165.

It can be written as a sum of positive squares in 4 ways, for example, as 47997184 + 8202496 = 6928^2 + 2864^2 .

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 7 ways as a sum of consecutive naturals, for example, 73862 + ... + 74618.

Almost surely, 2^56199680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56199680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69789060).

56199680 is an abundant number, since it is smaller than the sum of its proper divisors (83378440).

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

56199680 is an equidigital number, since it uses as much as digits as its factorization.

56199680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809 (or 793 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 56199680 is about 7496.6445827450. The cubic root of 56199680 is about 383.0404282120.

The spelling of 56199680 in words is "fifty-six million, one hundred ninety-nine thousand, six hundred eighty".