225130452 has 24 divisors (see below), whose sum is σ = 533146656. Its totient is φ = 73923168.

The previous prime is 225130441. The next prime is 225130471. The reversal of 225130452 is 254031522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139203 + ... + 140810.

It is an arithmetic number, because the mean of its divisors is an integer number (22214444).

Almost surely, 2^225130452 is an apocalyptic number.

It is an amenable number.

225130452 is an abundant number, since it is smaller than the sum of its proper divisors (308016204).

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

225130452 is a wasteful number, since it uses less digits than its factorization.

225130452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280087 (or 280085 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 225130452 is about 15004.3477698966. The cubic root of 225130452 is about 608.3377228348.

Adding to 225130452 its reverse (254031522), we get a palindrome (479161974).

The spelling of 225130452 in words is "two hundred twenty-five million, one hundred thirty thousand, four hundred fifty-two".