22552644 has 12 divisors (see below), whose sum is σ = 52622864. Its totient is φ = 7517544.

The previous prime is 22552637. The next prime is 22552657. The reversal of 22552644 is 44625522.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 939682 + ... + 939705.

Almost surely, 2^22552644 is an apocalyptic number.

It is an amenable number.

22552644 is an abundant number, since it is smaller than the sum of its proper divisors (30070220).

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

22552644 is a wasteful number, since it uses less digits than its factorization.

22552644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879394 (or 1879392 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 22552644 is about 4748.9624129909. The cubic root of 22552644 is about 282.5308145049.

The spelling of 22552644 in words is "twenty-two million, five hundred fifty-two thousand, six hundred forty-four".