22502136 has 16 divisors (see below), whose sum is σ = 56255400. Its totient is φ = 7500704.

The previous prime is 22502131. The next prime is 22502141. The reversal of 22502136 is 63120522.

It is an interprime number because it is at equal distance from previous prime (22502131) and next prime (22502141).

It is a super-2 number, since 2×22502136² = 1012692249124992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22502131) 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, 468771 + ... + 468818.

Almost surely, 2^22502136 is an apocalyptic number.

It is an amenable number.

22502136 is an abundant number, since it is smaller than the sum of its proper divisors (33753264).

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

22502136 is a wasteful number, since it uses less digits than its factorization.

22502136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937598 (or 937594 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 22502136 is about 4743.6416390786. The cubic root of 22502136 is about 282.3197419503.

Adding to 22502136 its reverse (63120522), we get a palindrome (85622658).

The spelling of 22502136 in words is "twenty-two million, five hundred two thousand, one hundred thirty-six".