22388625 has 48 divisors (see below), whose sum is σ = 46141056. Its totient is φ = 10231200.

The previous prime is 22388581. The next prime is 22388629. The reversal of 22388625 is 52688322.

22388625 is a `hidden beast` number, since 2 + 23 + 8 + 8 + 625 = 666.

It is not a de Polignac number, because 22388625 - 2¹⁴ = 22372241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22388625.

It is not an unprimeable number, because it can be changed into a prime (22388629) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6454 + ... + 9296.

It is an arithmetic number, because the mean of its divisors is an integer number (961272).

Almost surely, 2^22388625 is an apocalyptic number.

22388625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22388625 is an abundant number, since it is smaller than the sum of its proper divisors (23752431).

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

22388625 is a wasteful number, since it uses less digits than its factorization.

22388625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871 (or 2858 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 22388625 is about 4731.6619701750. The cubic root of 22388625 is about 281.8442251182.

The spelling of 22388625 in words is "twenty-two million, three hundred eighty-eight thousand, six hundred twenty-five".