22152528 has 50 divisors (see below), whose sum is σ = 64119594. Its totient is φ = 7383744.

The previous prime is 22152523. The next prime is 22152539. The reversal of 22152528 is 82525122.

It can be written as a sum of positive squares in only one way, i.e., 19289664 + 2862864 = 4392^2 + 1692^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22152523) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7251 + ... + 9842.

Almost surely, 2^22152528 is an apocalyptic number.

It is an amenable number.

22152528 is an abundant number, since it is smaller than the sum of its proper divisors (41967066).

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

22152528 is a wasteful number, since it uses less digits than its factorization.

22152528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17113 (or 17098 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 22152528 is about 4706.6472143130. The cubic root of 22152528 is about 280.8500020533.

The spelling of 22152528 in words is "twenty-two million, one hundred fifty-two thousand, five hundred twenty-eight".