22537252 has 24 divisors (see below), whose sum is σ = 40513536. Its totient is φ = 10964928.

The previous prime is 22537247. The next prime is 22537253. The reversal of 22537252 is 25273522.

It is a self number, because there is not a number n which added to its sum of digits gives 22537252.

It is not an unprimeable number, because it can be changed into a prime (22537253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58653 + ... + 59035.

It is an arithmetic number, because the mean of its divisors is an integer number (1688064).

Almost surely, 2^22537252 is an apocalyptic number.

It is an amenable number.

22537252 is a deficient number, since it is larger than the sum of its proper divisors (17976284).

22537252 is a wasteful number, since it uses less digits than its factorization.

22537252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747 (or 745 counting only the distinct ones).

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

The square root of 22537252 is about 4747.3415718695. The cubic root of 22537252 is about 282.4665248663.

The spelling of 22537252 in words is "twenty-two million, five hundred thirty-seven thousand, two hundred fifty-two".