22355155 has 12 divisors (see below), whose sum is σ = 27231120. Its totient is φ = 17618112.

The previous prime is 22355147. The next prime is 22355161. The reversal of 22355155 is 55155322.

It is not a de Polignac number, because 22355155 - 2³ = 22355147 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 26226 + ... + 27064.

It is an arithmetic number, because the mean of its divisors is an integer number (2269260).

Almost surely, 2^22355155 is an apocalyptic number.

22355155 is a deficient number, since it is larger than the sum of its proper divisors (4875965).

22355155 is an frugal number, since it uses more digits than its factorization.

22355155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990 (or 917 counting only the distinct ones).

The product of its digits is 7500, while the sum is 28.

The square root of 22355155 is about 4728.1238350957. The cubic root of 22355155 is about 281.7037068725.

The spelling of 22355155 in words is "twenty-two million, three hundred fifty-five thousand, one hundred fifty-five".