56550615056 has 120 divisors (see below), whose sum is σ = 127399060224. Its totient is φ = 24217589760.

The previous prime is 56550615049. The next prime is 56550615071. The reversal of 56550615056 is 65051605565.

It is a junction number, because it is equal to n+sod(n) for n = 56550614998 and 56550615016.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3255065 + ... + 3272391.

Almost surely, 2^56550615056 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 56550615056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63699530112).

56550615056 is an abundant number, since it is smaller than the sum of its proper divisors (70848445168).

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

56550615056 is a wasteful number, since it uses less digits than its factorization.

56550615056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17449 (or 17430 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 44.

The spelling of 56550615056 in words is "fifty-six billion, five hundred fifty million, six hundred fifteen thousand, fifty-six".