22537532 has 12 divisors (see below), whose sum is σ = 39662280. Its totient is φ = 11205456.

The previous prime is 22537531. The next prime is 22537573. The reversal of 22537532 is 23573522.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22537495 and 22537504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22537531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15023 + ... + 16454.

It is an arithmetic number, because the mean of its divisors is an integer number (3305190).

Almost surely, 2^22537532 is an apocalyptic number.

It is an amenable number.

22537532 is a deficient number, since it is larger than the sum of its proper divisors (17124748).

22537532 is a wasteful number, since it uses less digits than its factorization.

22537532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31660 (or 31658 counting only the distinct ones).

The product of its digits is 12600, while the sum is 29.

The square root of 22537532 is about 4747.3710619668. The cubic root of 22537532 is about 282.4676946378.

The spelling of 22537532 in words is "twenty-two million, five hundred thirty-seven thousand, five hundred thirty-two".