22536156 has 12 divisors (see below), whose sum is σ = 52584392. Its totient is φ = 7512048.

The previous prime is 22536133. The next prime is 22536167. The reversal of 22536156 is 65163522.

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

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, 938995 + ... + 939018.

Almost surely, 2^22536156 is an apocalyptic number.

It is an amenable number.

22536156 is an abundant number, since it is smaller than the sum of its proper divisors (30048236).

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

22536156 is a wasteful number, since it uses less digits than its factorization.

22536156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878020 (or 1878018 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 22536156 is about 4747.2261374407. The cubic root of 22536156 is about 282.4619459536.

Adding to 22536156 its reverse (65163522), we get a palindrome (87699678).

The spelling of 22536156 in words is "twenty-two million, five hundred thirty-six thousand, one hundred fifty-six".