225523311 has 16 divisors (see below), whose sum is σ = 329320320. Its totient is φ = 136429920.

The previous prime is 225523301. The next prime is 225523327. The reversal of 225523311 is 113325522.

It is a happy number.

It is not a de Polignac number, because 225523311 - 2⁵ = 225523279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225523301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46705 + ... + 51306.

It is an arithmetic number, because the mean of its divisors is an integer number (20582520).

Almost surely, 2^225523311 is an apocalyptic number.

225523311 is a deficient number, since it is larger than the sum of its proper divisors (103797009).

225523311 is a wasteful number, since it uses less digits than its factorization.

225523311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98086.

The product of its digits is 1800, while the sum is 24.

The square root of 225523311 is about 15017.4335690224. The cubic root of 225523311 is about 608.6913727100.

Adding to 225523311 its reverse (113325522), we get a palindrome (338848833).

The spelling of 225523311 in words is "two hundred twenty-five million, five hundred twenty-three thousand, three hundred eleven".