225917712 has 30 divisors (see below), whose sum is σ = 632256222. Its totient is φ = 75305856.

The previous prime is 225917711. The next prime is 225917737. The reversal of 225917712 is 217719522.

It can be written as a sum of positive squares in only one way, i.e., 225720576 + 197136 = 15024^2 + 444^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (225917711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 784293 + ... + 784580.

Almost surely, 2^225917712 is an apocalyptic number.

It is an amenable number.

225917712 is an abundant number, since it is smaller than the sum of its proper divisors (406338510).

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

225917712 is a wasteful number, since it uses less digits than its factorization.

225917712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568887 (or 1568878 counting only the distinct ones).

The product of its digits is 17640, while the sum is 36.

The square root of 225917712 is about 15030.5592710318. The cubic root of 225917712 is about 609.0459978037.

It can be divided in two parts, 22591 and 7712, that added together give a palindrome (30303).

The spelling of 225917712 in words is "two hundred twenty-five million, nine hundred seventeen thousand, seven hundred twelve".