56565423305520 has 160 divisors (see below), whose sum is σ = 179596763357184. Its totient is φ = 14722022016000.

The previous prime is 56565423305519. The next prime is 56565423305539. The reversal of 56565423305520 is 2550332456565.

It is a happy number.

It is a super-2 number, since 2×56565423305520² (a number of 28 digits) contains 22 as substring.

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, 9211756 + ... + 14070795.

Almost surely, 2^{56565423305520} is an apocalyptic number.

It is an amenable number.

56565423305520 is an abundant number, since it is smaller than the sum of its proper divisors (123031340051664).

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

56565423305520 is a wasteful number, since it uses less digits than its factorization.

56565423305520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23282811 (or 23282805 counting only the distinct ones).

The product of its (nonzero) digits is 16200000, while the sum is 51.

The spelling of 56565423305520 in words is "fifty-six trillion, five hundred sixty-five billion, four hundred twenty-three million, three hundred five thousand, five hundred twenty".