225986 has 12 divisors (see below), whose sum is σ = 358902. Its totient is φ = 106704.

The previous prime is 225983. The next prime is 225989. The reversal of 225986 is 689522.

225986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (225983) and next prime (225989).

It can be written as a sum of positive squares in only one way, i.e., 225625 + 361 = 475^2 + 19^2 .

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (225983) 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, 566 + ... + 878.

2²²⁵⁹⁸⁶ is an apocalyptic number.

225986 is a deficient number, since it is larger than the sum of its proper divisors (132916).

225986 is a wasteful number, since it uses less digits than its factorization.

225986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353 (or 334 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 225986 is about 475.3798481215. The cubic root of 225986 is about 60.9107356934.

The spelling of 225986 in words is "two hundred twenty-five thousand, nine hundred eighty-six".