22605564 has 24 divisors (see below), whose sum is σ = 53056080. Its totient is φ = 7490944.

The previous prime is 22605547. The next prime is 22605571. The reversal of 22605564 is 46550622.

It is a super-2 number, since 2×22605564² = 1022023047516192, which contains 22 as substring.

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, 3369 + ... + 7520.

It is an arithmetic number, because the mean of its divisors is an integer number (2210670).

Almost surely, 2^22605564 is an apocalyptic number.

It is an amenable number.

22605564 is an abundant number, since it is smaller than the sum of its proper divisors (30450516).

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

22605564 is a wasteful number, since it uses less digits than its factorization.

22605564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11069 (or 11067 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 22605564 is about 4754.5308916864. The cubic root of 22605564 is about 282.7516289881.

The spelling of 22605564 in words is "twenty-two million, six hundred five thousand, five hundred sixty-four".