225311252 has 12 divisors (see below), whose sum is σ = 394496256. Its totient is φ = 112598040.

The previous prime is 225311213. The next prime is 225311257. The reversal of 225311252 is 252113522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225311257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4898 + ... + 21785.

It is an arithmetic number, because the mean of its divisors is an integer number (32874688).

Almost surely, 2^225311252 is an apocalyptic number.

It is an amenable number.

225311252 is a deficient number, since it is larger than the sum of its proper divisors (169185004).

225311252 is a wasteful number, since it uses less digits than its factorization.

225311252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28798 (or 28796 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 225311252 is about 15010.3714810793. The cubic root of 225311252 is about 608.5005292272.

Adding to 225311252 its reverse (252113522), we get a palindrome (477424774).

The spelling of 225311252 in words is "two hundred twenty-five million, three hundred eleven thousand, two hundred fifty-two".