22525372 has 12 divisors (see below), whose sum is σ = 41133456. Its totient is φ = 10772960.

The previous prime is 22525369. The next prime is 22525387. The reversal of 22525372 is 27352522.

It is a self number, because there is not a number n which added to its sum of digits gives 22525372.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122329 + ... + 122512.

It is an arithmetic number, because the mean of its divisors is an integer number (3427788).

Almost surely, 2^22525372 is an apocalyptic number.

It is an amenable number.

22525372 is a deficient number, since it is larger than the sum of its proper divisors (18608084).

22525372 is a wasteful number, since it uses less digits than its factorization.

22525372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244868 (or 244866 counting only the distinct ones).

The product of its digits is 8400, while the sum is 28.

The square root of 22525372 is about 4746.0901803485. The cubic root of 22525372 is about 282.4168842075.

Adding to 22525372 its reverse (27352522), we get a palindrome (49877894).

The spelling of 22525372 in words is "twenty-two million, five hundred twenty-five thousand, three hundred seventy-two".