22265625 has 36 divisors (see below), whose sum is σ = 39062480. Its totient is φ = 11250000.

The previous prime is 22265569. The next prime is 22265627. The reversal of 22265625 is 52656222.

It is not a de Polignac number, because 22265625 - 2⁶ = 22265561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22265592 and 22265601.

It is not an unprimeable number, because it can be changed into a prime (22265627) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1171866 + ... + 1171884.

Almost surely, 2^22265625 is an apocalyptic number.

22265625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22265625 is a deficient number, since it is larger than the sum of its proper divisors (16796855).

22265625 is an frugal number, since it uses more digits than its factorization.

22265625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62 (or 27 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 22265625 is about 4718.6465220442. The cubic root of 22265625 is about 281.3271393346.

The spelling of 22265625 in words is "twenty-two million, two hundred sixty-five thousand, six hundred twenty-five".