22655225 has 12 divisors (see below), whose sum is σ = 28450560. Its totient is φ = 17893200.

The previous prime is 22655219. The next prime is 22655249. The reversal of 22655225 is 52255622.

It is not a de Polignac number, because 22655225 - 2¹⁰ = 22654201 is a prime.

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, 3761 + ... + 7710.

It is an arithmetic number, because the mean of its divisors is an integer number (2370880).

Almost surely, 2^22655225 is an apocalyptic number.

22655225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22655225 is a deficient number, since it is larger than the sum of its proper divisors (5795335).

22655225 is a wasteful number, since it uses less digits than its factorization.

22655225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11560 (or 11555 counting only the distinct ones).

The product of its digits is 12000, while the sum is 29.

The square root of 22655225 is about 4759.7505186722. The cubic root of 22655225 is about 282.9585317173.

The spelling of 22655225 in words is "twenty-two million, six hundred fifty-five thousand, two hundred twenty-five".