22664825 has 18 divisors (see below), whose sum is σ = 29864346. Its totient is φ = 17059840.

The previous prime is 22664809. The next prime is 22664839. The reversal of 22664825 is 52846622.

It can be written as a sum of positive squares in 9 ways, for example, as 414736 + 22250089 = 644^2 + 4717^2 .

It is not a de Polignac number, because 22664825 - 2⁴ = 22664809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5657 + ... + 8793.

Almost surely, 2^22664825 is an apocalyptic number.

22664825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22664825 is a deficient number, since it is larger than the sum of its proper divisors (7199521).

22664825 is a wasteful number, since it uses less digits than its factorization.

22664825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3181 (or 3159 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 22664825 is about 4760.7588680798. The cubic root of 22664825 is about 282.9984933348.

The spelling of 22664825 in words is "twenty-two million, six hundred sixty-four thousand, eight hundred twenty-five".