56559329320 has 128 divisors (see below), whose sum is σ = 142537127040. Its totient is φ = 20062909440.

The previous prime is 56559329291. The next prime is 56559329327. The reversal of 56559329320 is 2392395565.

It is not an unprimeable number, because it can be changed into a prime (56559329327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1343227 + ... + 1384693.

It is an arithmetic number, because the mean of its divisors is an integer number (1113571305).

Almost surely, 2^56559329320 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 56559329320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71268563520).

56559329320 is an abundant number, since it is smaller than the sum of its proper divisors (85977797720).

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

56559329320 is a wasteful number, since it uses less digits than its factorization.

56559329320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41595 (or 41591 counting only the distinct ones).

The product of its (nonzero) digits is 2187000, while the sum is 49.

The spelling of 56559329320 in words is "fifty-six billion, five hundred fifty-nine million, three hundred twenty-nine thousand, three hundred twenty".