22265155 has 16 divisors (see below), whose sum is σ = 30862944. Its totient is φ = 15239680.

The previous prime is 22265077. The next prime is 22265167. The reversal of 22265155 is 55156222.

It is not a de Polignac number, because 22265155 - 2²³ = 13876547 is a prime.

It is a Duffinian number.

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, 10972 + ... + 12841.

It is an arithmetic number, because the mean of its divisors is an integer number (1928934).

Almost surely, 2^22265155 is an apocalyptic number.

22265155 is a deficient number, since it is larger than the sum of its proper divisors (8597789).

22265155 is a wasteful number, since it uses less digits than its factorization.

22265155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23846.

The product of its digits is 6000, while the sum is 28.

The square root of 22265155 is about 4718.5967193648. The cubic root of 22265155 is about 281.3251598306.

It can be divided in two parts, 2226 and 5155, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 22265155 in words is "twenty-two million, two hundred sixty-five thousand, one hundred fifty-five".