56561700210 has 96 divisors (see below), whose sum is σ = 146318337792. Its totient is φ = 13985118720.

The previous prime is 56561700199. The next prime is 56561700269. The reversal of 56561700210 is 1200716565.

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 47 ways as a sum of consecutive naturals, for example, 453450 + ... + 564570.

It is an arithmetic number, because the mean of its divisors is an integer number (1524149352).

Almost surely, 2^56561700210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56561700210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73159168896).

56561700210 is an abundant number, since it is smaller than the sum of its proper divisors (89756637582).

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

56561700210 is a wasteful number, since it uses less digits than its factorization.

56561700210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111216 (or 111197 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The spelling of 56561700210 in words is "fifty-six billion, five hundred sixty-one million, seven hundred thousand, two hundred ten".