22786225 has 72 divisors (see below), whose sum is σ = 38167200. Its totient is φ = 13305600.

The previous prime is 22786217. The next prime is 22786229. The reversal of 22786225 is 52268722.

It is a happy number.

It is not a de Polignac number, because 22786225 - 2³ = 22786217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22786229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 255981 + ... + 256069.

It is an arithmetic number, because the mean of its divisors is an integer number (530100).

Almost surely, 2^22786225 is an apocalyptic number.

22786225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22786225 is a deficient number, since it is larger than the sum of its proper divisors (15380975).

22786225 is a wasteful number, since it uses less digits than its factorization.

22786225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 131 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The square root of 22786225 is about 4773.4919084461. The cubic root of 22786225 is about 283.5028704683.

The spelling of 22786225 in words is "twenty-two million, seven hundred eighty-six thousand, two hundred twenty-five".