22564804 has 6 divisors (see below), whose sum is σ = 39488414. Its totient is φ = 11282400.

The previous prime is 22564781. The next prime is 22564847. The reversal of 22564804 is 40846522.

It can be written as a sum of positive squares in only one way, i.e., 22562500 + 2304 = 4750^2 + 48^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2820597 + ... + 2820604.

Almost surely, 2^22564804 is an apocalyptic number.

It is an amenable number.

22564804 is a deficient number, since it is larger than the sum of its proper divisors (16923610).

22564804 is a wasteful number, since it uses less digits than its factorization.

22564804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5641205 (or 5641203 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 22564804 is about 4750.2425201246. The cubic root of 22564804 is about 282.5815839760.

The spelling of 22564804 in words is "twenty-two million, five hundred sixty-four thousand, eight hundred four".