225321200 has 60 divisors (see below), whose sum is σ = 582988728. Its totient is φ = 83193600.

The previous prime is 225321191. The next prime is 225321223. The reversal of 225321200 is 2123522.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 16466 + ... + 26865.

Almost surely, 2^225321200 is an apocalyptic number.

225321200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225321200 is an abundant number, since it is smaller than the sum of its proper divisors (357667528).

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

225321200 is a wasteful number, since it uses less digits than its factorization.

225321200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43362 (or 43351 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 225321200 is about 15010.7028483013. The cubic root of 225321200 is about 608.5094846524.

Adding to 225321200 its reverse (2123522), we get a palindrome (227444722).

It can be divided in two parts, 22532 and 1200, that added together give a palindrome (23732).

The spelling of 225321200 in words is "two hundred twenty-five million, three hundred twenty-one thousand, two hundred".