225712 has 10 divisors (see below), whose sum is σ = 437348. Its totient is φ = 112848.

The previous prime is 225697. The next prime is 225721. The reversal of 225712 is 217522.

225712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 225712.

It is an unprimeable number.

225712 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7038 + ... + 7069.

2²²⁵⁷¹² is an apocalyptic number.

It is an amenable number.

225712 is a deficient number, since it is larger than the sum of its proper divisors (211636).

225712 is a wasteful number, since it uses less digits than its factorization.

225712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14115 (or 14109 counting only the distinct ones).

The product of its digits is 280, while the sum is 19.

The square root of 225712 is about 475.0915701210. The cubic root of 225712 is about 60.8861083695.

The spelling of 225712 in words is "two hundred twenty-five thousand, seven hundred twelve".