225166155 has 16 divisors (see below), whose sum is σ = 360510720. Its totient is φ = 120007008.

The previous prime is 225166153. The next prime is 225166157. The reversal of 225166155 is 551661522.

It is an interprime number because it is at equal distance from previous prime (225166153) and next prime (225166157).

It is not a de Polignac number, because 225166155 - 2¹ = 225166153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225166153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22536 + ... + 30954.

It is an arithmetic number, because the mean of its divisors is an integer number (22531920).

Almost surely, 2^225166155 is an apocalyptic number.

225166155 is a deficient number, since it is larger than the sum of its proper divisors (135344565).

225166155 is a wasteful number, since it uses less digits than its factorization.

225166155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10210.

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

The square root of 225166155 is about 15005.5374778780. The cubic root of 225166155 is about 608.3698795000.

The spelling of 225166155 in words is "two hundred twenty-five million, one hundred sixty-six thousand, one hundred fifty-five".