56566207500 has 240 divisors, whose sum is σ = 180361665792. Its totient is φ = 13679840000.

The previous prime is 56566207499. The next prime is 56566207513. The reversal of 56566207500 is 570266565.

It is a happy number.

56566207500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 63772057 + ... + 63772943.

Almost surely, 2^56566207500 is an apocalyptic number.

56566207500 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 56566207500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90180832896).

56566207500 is an abundant number, since it is smaller than the sum of its proper divisors (123795458292).

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

56566207500 is a wasteful number, since it uses less digits than its factorization.

56566207500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698 (or 1681 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 42.

The spelling of 56566207500 in words is "fifty-six billion, five hundred sixty-six million, two hundred seven thousand, five hundred".