225523232 has 24 divisors (see below), whose sum is σ = 484363152. Its totient is φ = 102510400.

The previous prime is 225523229. The next prime is 225523267. The reversal of 225523232 is 232325522.

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, 319994 + ... + 320697.

It is an arithmetic number, because the mean of its divisors is an integer number (20181798).

Almost surely, 2^225523232 is an apocalyptic number.

225523232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

225523232 is an abundant number, since it is smaller than the sum of its proper divisors (258839920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225523232 is a wasteful number, since it uses less digits than its factorization.

225523232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640712 (or 640704 counting only the distinct ones).

The product of its digits is 7200, while the sum is 26.

The square root of 225523232 is about 15017.4309387458. The cubic root of 225523232 is about 608.6913016359.

Adding to 225523232 its reverse (232325522), we get a palindrome (457848754).

The spelling of 225523232 in words is "two hundred twenty-five million, five hundred twenty-three thousand, two hundred thirty-two".