225015224 has 32 divisors (see below), whose sum is σ = 482926080. Its totient is φ = 96285024.

The previous prime is 225015221. The next prime is 225015277. The reversal of 225015224 is 422510522.

It is a self number, because there is not a number n which added to its sum of digits gives 225015224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225015221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37949 + ... + 43475.

It is an arithmetic number, because the mean of its divisors is an integer number (15091440).

Almost surely, 2^225015224 is an apocalyptic number.

It is an amenable number.

225015224 is an abundant number, since it is smaller than the sum of its proper divisors (257910856).

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

225015224 is a wasteful number, since it uses less digits than its factorization.

225015224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6267 (or 6263 counting only the distinct ones).

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

The square root of 225015224 is about 15000.5074580829. The cubic root of 225015224 is about 608.2339170914.

Adding to 225015224 its reverse (422510522), we get a palindrome (647525746).

The spelling of 225015224 in words is "two hundred twenty-five million, fifteen thousand, two hundred twenty-four".