22565204 has 6 divisors (see below), whose sum is σ = 39489114. Its totient is φ = 11282600.

The previous prime is 22565203. The next prime is 22565209. The reversal of 22565204 is 40256522.

It can be written as a sum of positive squares in only one way, i.e., 22562500 + 2704 = 4750^2 + 52^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22565203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2820647 + ... + 2820654.

It is an arithmetic number, because the mean of its divisors is an integer number (6581519).

Almost surely, 2^22565204 is an apocalyptic number.

It is an amenable number.

22565204 is a deficient number, since it is larger than the sum of its proper divisors (16923910).

22565204 is a wasteful number, since it uses less digits than its factorization.

22565204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5641305 (or 5641303 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 22565204 is about 4750.2846230515. The cubic root of 22565204 is about 282.5832537145.

The spelling of 22565204 in words is "twenty-two million, five hundred sixty-five thousand, two hundred four".