22408625 has 8 divisors (see below), whose sum is σ = 27966120. Its totient is φ = 17926800.

The previous prime is 22408597. The next prime is 22408627. The reversal of 22408625 is 52680422.

It can be written as a sum of positive squares in 4 ways, for example, as 4532641 + 17875984 = 2129^2 + 4228^2 .

It is not a de Polignac number, because 22408625 - 2¹⁶ = 22343089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22408627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89510 + ... + 89759.

It is an arithmetic number, because the mean of its divisors is an integer number (3495765).

Almost surely, 2^22408625 is an apocalyptic number.

22408625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22408625 is a deficient number, since it is larger than the sum of its proper divisors (5557495).

22408625 is an equidigital number, since it uses as much as digits as its factorization.

22408625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179284 (or 179274 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 22408625 is about 4733.7749207160. The cubic root of 22408625 is about 281.9281249682.

The spelling of 22408625 in words is "twenty-two million, four hundred eight thousand, six hundred twenty-five".