22564540056 has 32 divisors (see below), whose sum is σ = 56511581760. Its totient is φ = 7508149152.

The previous prime is 22564540039. The next prime is 22564540069. The reversal of 22564540056 is 65004546522.

It is a junction number, because it is equal to n+sod(n) for n = 22564539996 and 22564540023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821470 + ... + 848493.

It is an arithmetic number, because the mean of its divisors is an integer number (1765986930).

Almost surely, 2^22564540056 is an apocalyptic number.

It is an amenable number.

22564540056 is an abundant number, since it is smaller than the sum of its proper divisors (33947041704).

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

22564540056 is a wasteful number, since it uses less digits than its factorization.

22564540056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670535 (or 1670531 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 39.

The spelling of 22564540056 in words is "twenty-two billion, five hundred sixty-four million, five hundred forty thousand, fifty-six".