225533144 has 16 divisors (see below), whose sum is σ = 423616200. Its totient is φ = 112568832.

The previous prime is 225533117. The next prime is 225533159. The reversal of 225533144 is 441335522.

It is a happy number.

225533144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 19814 + ... + 29045.

Almost surely, 2^225533144 is an apocalyptic number.

It is an amenable number.

225533144 is a deficient number, since it is larger than the sum of its proper divisors (198083056).

225533144 is a wasteful number, since it uses less digits than its factorization.

225533144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49442 (or 49438 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 225533144 is about 15017.7609516199. The cubic root of 225533144 is about 608.7002190613.

Adding to 225533144 its reverse (441335522), we get a palindrome (666868666).

The spelling of 225533144 in words is "two hundred twenty-five million, five hundred thirty-three thousand, one hundred forty-four".