225691200 has 252 divisors, whose sum is σ = 917163520. Its totient is φ = 51563520.

The previous prime is 225691181. The next prime is 225691211. The reversal of 225691200 is 2196522.

It is a tau number, because it is divible by the number of its divisors (252).

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 35 ways as a sum of consecutive naturals, for example, 99681 + ... + 101919.

Almost surely, 2^225691200 is an apocalyptic number.

225691200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225691200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458581760).

225691200 is an abundant number, since it is smaller than the sum of its proper divisors (691472320).

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

225691200 is a wasteful number, since it uses less digits than its factorization.

225691200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274 (or 2256 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 225691200 is about 15023.0223324070. The cubic root of 225691200 is about 608.8423803628.

The spelling of 225691200 in words is "two hundred twenty-five million, six hundred ninety-one thousand, two hundred".