56633381800 has 96 divisors (see below), whose sum is σ = 139489197120. Its totient is φ = 21309926400.

The previous prime is 56633381797. The next prime is 56633381801. The reversal of 56633381800 is 818333665.

It is not an unprimeable number, because it can be changed into a prime (56633381801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10425085 + ... + 10430515.

It is an arithmetic number, because the mean of its divisors is an integer number (1453012470).

Almost surely, 2^56633381800 is an apocalyptic number.

56633381800 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 56633381800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69744598560).

56633381800 is an abundant number, since it is smaller than the sum of its proper divisors (82855815320).

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

56633381800 is a wasteful number, since it uses less digits than its factorization.

56633381800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8531 (or 8522 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 56633381800 in words is "fifty-six billion, six hundred thirty-three million, three hundred eighty-one thousand, eight hundred".