22552564 has 6 divisors (see below), whose sum is σ = 39466994. Its totient is φ = 11276280.

The previous prime is 22552561. The next prime is 22552577. The reversal of 22552564 is 46525522.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16744464 + 5808100 = 4092^2 + 2410^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22552561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2819067 + ... + 2819074.

Almost surely, 2^22552564 is an apocalyptic number.

It is an amenable number.

22552564 is a deficient number, since it is larger than the sum of its proper divisors (16914430).

22552564 is a wasteful number, since it uses less digits than its factorization.

22552564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5638145 (or 5638143 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

The square root of 22552564 is about 4748.9539900909. The cubic root of 22552564 is about 282.5304804348.

The spelling of 22552564 in words is "twenty-two million, five hundred fifty-two thousand, five hundred sixty-four".