225532911 has 4 divisors (see below), whose sum is σ = 300710552. Its totient is φ = 150355272.

The previous prime is 225532891. The next prime is 225532919. The reversal of 225532911 is 119235522.

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

It is not a de Polignac number, because 225532911 - 2⁶ = 225532847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225532919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37588816 + ... + 37588821.

It is an arithmetic number, because the mean of its divisors is an integer number (75177638).

Almost surely, 2^225532911 is an apocalyptic number.

225532911 is a deficient number, since it is larger than the sum of its proper divisors (75177641).

225532911 is an equidigital number, since it uses as much as digits as its factorization.

225532911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75177640.

The product of its digits is 5400, while the sum is 30.

The square root of 225532911 is about 15017.7531941366. The cubic root of 225532911 is about 608.7000094436.

The spelling of 225532911 in words is "two hundred twenty-five million, five hundred thirty-two thousand, nine hundred eleven".