225242200 has 24 divisors (see below), whose sum is σ = 523688580. Its totient is φ = 90096800.

The previous prime is 225242167. The next prime is 225242239. The reversal of 225242200 is 2242522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 562906 + ... + 563305.

Almost surely, 2^225242200 is an apocalyptic number.

225242200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225242200 is an abundant number, since it is smaller than the sum of its proper divisors (298446380).

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

225242200 is a wasteful number, since it uses less digits than its factorization.

225242200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126227 (or 1126218 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 225242200 is about 15008.0711618782. The cubic root of 225242200 is about 608.4383597152.

Adding to 225242200 its reverse (2242522), we get a palindrome (227484722).

The spelling of 225242200 in words is "two hundred twenty-five million, two hundred forty-two thousand, two hundred".