22255205 has 32 divisors (see below), whose sum is σ = 31739904. Its totient is φ = 14665536.

The previous prime is 22255199. The next prime is 22255229. The reversal of 22255205 is 50255222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22255205 - 2⁶ = 22255141 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 136454 + ... + 136616.

It is an arithmetic number, because the mean of its divisors is an integer number (991872).

Almost surely, 2^22255205 is an apocalyptic number.

It is an amenable number.

22255205 is a deficient number, since it is larger than the sum of its proper divisors (9484699).

22255205 is a wasteful number, since it uses less digits than its factorization.

22255205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 22255205 is about 4717.5422626618. The cubic root of 22255205 is about 281.2832467693.

The spelling of 22255205 in words is "twenty-two million, two hundred fifty-five thousand, two hundred five".