225031152 has 20 divisors (see below), whose sum is σ = 581330600. Its totient is φ = 75010368.

The previous prime is 225031141. The next prime is 225031171. The reversal of 225031152 is 251130522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2344027 + ... + 2344122.

It is an arithmetic number, because the mean of its divisors is an integer number (29066530).

Almost surely, 2^225031152 is an apocalyptic number.

It is an amenable number.

225031152 is an abundant number, since it is smaller than the sum of its proper divisors (356299448).

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

225031152 is a wasteful number, since it uses less digits than its factorization.

225031152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4688160 (or 4688154 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 225031152 is about 15001.0383640600. The cubic root of 225031152 is about 608.2482683000.

Adding to 225031152 its reverse (251130522), we get a palindrome (476161674).

The spelling of 225031152 in words is "two hundred twenty-five million, thirty-one thousand, one hundred fifty-two".