225204152 has 24 divisors (see below), whose sum is σ = 428722560. Its totient is φ = 110903760.

The previous prime is 225204127. The next prime is 225204167. The reversal of 225204152 is 251402522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32777 + ... + 39047.

It is an arithmetic number, because the mean of its divisors is an integer number (17863440).

Almost surely, 2^225204152 is an apocalyptic number.

It is an amenable number.

225204152 is a deficient number, since it is larger than the sum of its proper divisors (203518408).

225204152 is an equidigital number, since it uses as much as digits as its factorization.

225204152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6411 (or 6340 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 225204152 is about 15006.8035237355. The cubic root of 225204152 is about 608.4040985713.

Adding to 225204152 its reverse (251402522), we get a palindrome (476606674).

The spelling of 225204152 in words is "two hundred twenty-five million, two hundred four thousand, one hundred fifty-two".