225909712 has 40 divisors (see below), whose sum is σ = 503914176. Its totient is φ = 96105216.

The previous prime is 225909709. The next prime is 225909737. The reversal of 225909712 is 217909522.

225909712 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7983 + ... + 22705.

Almost surely, 2^225909712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225909712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251957088).

225909712 is an abundant number, since it is smaller than the sum of its proper divisors (278004464).

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

225909712 is a wasteful number, since it uses less digits than its factorization.

225909712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14875 (or 14869 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 225909712 is about 15030.2931441805. The cubic root of 225909712 is about 609.0388087179.

The spelling of 225909712 in words is "two hundred twenty-five million, nine hundred nine thousand, seven hundred twelve".