22445625 has 20 divisors (see below), whose sum is σ = 37400528. Its totient is φ = 11970000.

The previous prime is 22445617. The next prime is 22445639. The reversal of 22445625 is 52654422.

It is a happy number.

It is not a de Polignac number, because 22445625 - 2³ = 22445617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22445592 and 22445601.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4111 + ... + 7860.

Almost surely, 2^22445625 is an apocalyptic number.

22445625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22445625 is a deficient number, since it is larger than the sum of its proper divisors (14954903).

22445625 is an equidigital number, since it uses as much as digits as its factorization.

22445625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11994 (or 11979 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 22445625 is about 4737.6813949442. The cubic root of 22445625 is about 282.0832081806.

The spelling of 22445625 in words is "twenty-two million, four hundred forty-five thousand, six hundred twenty-five".