56561542336 has 112 divisors (see below), whose sum is σ = 123373883808. Its totient is φ = 25567027200.

The previous prime is 56561542327. The next prime is 56561542343. The reversal of 56561542336 is 63324516565.

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, 42816556 + ... + 42817876.

It is an arithmetic number, because the mean of its divisors is an integer number (1101552534).

Almost surely, 2^56561542336 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 56561542336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61686941904).

56561542336 is an abundant number, since it is smaller than the sum of its proper divisors (66812341472).

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

56561542336 is a wasteful number, since it uses less digits than its factorization.

56561542336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370 (or 2360 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 46.

The spelling of 56561542336 in words is "fifty-six billion, five hundred sixty-one million, five hundred forty-two thousand, three hundred thirty-six".