56316011520 has 352 divisors, whose sum is σ = 199032069888. Its totient is φ = 13518241792.

The previous prime is 56316011509. The next prime is 56316011551. The reversal of 56316011520 is 2511061365.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6001072 + ... + 6010448.

Almost surely, 2^56316011520 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 56316011520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99516034944).

56316011520 is an abundant number, since it is smaller than the sum of its proper divisors (142716058368).

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

56316011520 is a wasteful number, since it uses less digits than its factorization.

56316011520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9445 (or 9427 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

Adding to 56316011520 its reverse (2511061365), we get a palindrome (58827072885).

The spelling of 56316011520 in words is "fifty-six billion, three hundred sixteen million, eleven thousand, five hundred twenty".