22549155 has 16 divisors (see below), whose sum is σ = 36270240. Its totient is φ = 11962368.

The previous prime is 22549147. The next prime is 22549187. The reversal of 22549155 is 55194522.

It is not a de Polignac number, because 22549155 - 2³ = 22549147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1000 + ... + 6789.

It is an arithmetic number, because the mean of its divisors is an integer number (2266890).

Almost surely, 2^22549155 is an apocalyptic number.

22549155 is a deficient number, since it is larger than the sum of its proper divisors (13721085).

22549155 is a wasteful number, since it uses less digits than its factorization.

22549155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7990.

The product of its digits is 18000, while the sum is 33.

The square root of 22549155 is about 4748.5950553822. The cubic root of 22549155 is about 282.5162441386.

The spelling of 22549155 in words is "twenty-two million, five hundred forty-nine thousand, one hundred fifty-five".