225167665 has 4 divisors (see below), whose sum is σ = 270201204. Its totient is φ = 180134128.

The previous prime is 225167623. The next prime is 225167671. The reversal of 225167665 is 566761522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 113294736 + 111872929 = 10644^2 + 10577^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225167665 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22516762 + ... + 22516771.

It is an arithmetic number, because the mean of its divisors is an integer number (67550301).

Almost surely, 2^225167665 is an apocalyptic number.

It is an amenable number.

225167665 is a deficient number, since it is larger than the sum of its proper divisors (45033539).

225167665 is an equidigital number, since it uses as much as digits as its factorization.

225167665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45033538.

The product of its digits is 151200, while the sum is 40.

The square root of 225167665 is about 15005.5877925525. The cubic root of 225167665 is about 608.3712394386.

The spelling of 225167665 in words is "two hundred twenty-five million, one hundred sixty-seven thousand, six hundred sixty-five".