22255902 has 12 divisors (see below), whose sum is σ = 48221160. Its totient is φ = 7418628.

The previous prime is 22255889. The next prime is 22255903. The reversal of 22255902 is 20955222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22255903) 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 5 ways as a sum of consecutive naturals, for example, 618202 + ... + 618237.

It is an arithmetic number, because the mean of its divisors is an integer number (4018430).

Almost surely, 2^22255902 is an apocalyptic number.

22255902 is an abundant number, since it is smaller than the sum of its proper divisors (25965258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22255902 is a wasteful number, since it uses less digits than its factorization.

22255902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236447 (or 1236444 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 22255902 is about 4717.6161352955. The cubic root of 22255902 is about 281.2861831966.

The spelling of 22255902 in words is "twenty-two million, two hundred fifty-five thousand, nine hundred two".