225022252 has 48 divisors (see below), whose sum is σ = 501399360. Its totient is φ = 85946112.

The previous prime is 225022241. The next prime is 225022267. The reversal of 225022252 is 252220522.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103 + ... + 21214.

It is an arithmetic number, because the mean of its divisors is an integer number (10445820).

Almost surely, 2^225022252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225022252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250699680).

225022252 is an abundant number, since it is smaller than the sum of its proper divisors (276377108).

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

225022252 is a wasteful number, since it uses less digits than its factorization.

225022252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21370 (or 21368 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 225022252 is about 15000.7417149953. The cubic root of 225022252 is about 608.2402494384.

Adding to 225022252 its reverse (252220522), we get a palindrome (477242774).

The spelling of 225022252 in words is "two hundred twenty-five million, twenty-two thousand, two hundred fifty-two".