22604425 has 12 divisors (see below), whose sum is σ = 28934656. Its totient is φ = 17499600.

The previous prime is 22604419. The next prime is 22604431. The reversal of 22604425 is 52440622.

It is an interprime number because it is at equal distance from previous prime (22604419) and next prime (22604431).

It is not a de Polignac number, because 22604425 - 2⁹ = 22603913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 22604425.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13809 + ... + 15358.

Almost surely, 2^22604425 is an apocalyptic number.

22604425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22604425 is a deficient number, since it is larger than the sum of its proper divisors (6330231).

22604425 is a wasteful number, since it uses less digits than its factorization.

22604425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29208 (or 29203 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 22604425 is about 4754.4111096959. The cubic root of 22604425 is about 282.7468800169.

The spelling of 22604425 in words is "twenty-two million, six hundred four thousand, four hundred twenty-five".