56520317430 has 64 divisors (see below), whose sum is σ = 150907276800. Its totient is φ = 15053441760.

The previous prime is 56520317423. The next prime is 56520317453. The reversal of 56520317430 is 3471302565.

56520317430 is a `hidden beast` number, since 5 + 6 + 5 + 203 + 17 + 430 = 666.

It is a congruent number.

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, 89911 + ... + 348029.

It is an arithmetic number, because the mean of its divisors is an integer number (2357926200).

Almost surely, 2^56520317430 is an apocalyptic number.

56520317430 is an abundant number, since it is smaller than the sum of its proper divisors (94386959370).

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

56520317430 is a wasteful number, since it uses less digits than its factorization.

56520317430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258946 (or 258940 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

Adding to 56520317430 its reverse (3471302565), we get a palindrome (59991619995).

The spelling of 56520317430 in words is "fifty-six billion, five hundred twenty million, three hundred seventeen thousand, four hundred thirty".