56472720546 has 32 divisors (see below), whose sum is σ = 130461046848. Its totient is φ = 16106301440.

The previous prime is 56472720497. The next prime is 56472720581. The reversal of 56472720546 is 64502727465.

It is a super-2 number, since 2×56472720546² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56472720495 and 56472720504.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25164975 + ... + 25167218.

It is an arithmetic number, because the mean of its divisors is an integer number (4076907714).

Almost surely, 2^56472720546 is an apocalyptic number.

56472720546 is an abundant number, since it is smaller than the sum of its proper divisors (73988326302).

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

56472720546 is a wasteful number, since it uses less digits than its factorization.

56472720546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50332226.

The product of its (nonzero) digits is 2822400, while the sum is 48.

The spelling of 56472720546 in words is "fifty-six billion, four hundred seventy-two million, seven hundred twenty thousand, five hundred forty-six".