22635625 has 10 divisors (see below), whose sum is σ = 28286258. Its totient is φ = 18108000.

The previous prime is 22635583. The next prime is 22635643. The reversal of 22635625 is 52653622.

It can be written as a sum of positive squares in 5 ways, for example, as 13749264 + 8886361 = 3708^2 + 2981^2 .

It is not a de Polignac number, because 22635625 - 2⁹ = 22635113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 17484 + ... + 18733.

Almost surely, 2^22635625 is an apocalyptic number.

22635625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22635625 is a deficient number, since it is larger than the sum of its proper divisors (5650633).

22635625 is an frugal number, since it uses more digits than its factorization.

22635625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36237 (or 36222 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 22635625 is about 4757.6911417199. The cubic root of 22635625 is about 282.8769083486.

The spelling of 22635625 in words is "twenty-two million, six hundred thirty-five thousand, six hundred twenty-five".