225976 has 16 divisors (see below), whose sum is σ = 433440. Its totient is φ = 110400.

The previous prime is 225961. The next prime is 225977. The reversal of 225976 is 679522.

225976 = 45² + 46² + ... + 91².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76 + ... + 676.

It is an arithmetic number, because the mean of its divisors is an integer number (27090).

2²²⁵⁹⁷⁶ is an apocalyptic number.

It is an amenable number.

225976 is a deficient number, since it is larger than the sum of its proper divisors (207464).

225976 is a wasteful number, since it uses less digits than its factorization.

225976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654 (or 650 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 225976 is about 475.3693301003. The cubic root of 225976 is about 60.9098372361.

The spelling of 225976 in words is "two hundred twenty-five thousand, nine hundred seventy-six".