225628 has 12 divisors (see below), whose sum is σ = 425320. Its totient is φ = 104112.

The previous prime is 225619. The next prime is 225629. The reversal of 225628 is 826522.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225629) 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, 2118 + ... + 2221.

2²²⁵⁶²⁸ is an apocalyptic number.

It is an amenable number.

225628 is a deficient number, since it is larger than the sum of its proper divisors (199692).

225628 is a wasteful number, since it uses less digits than its factorization.

225628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4356 (or 4354 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 225628 is about 475.0031578842. The cubic root of 225628 is about 60.8785543956.

The spelling of 225628 in words is "two hundred twenty-five thousand, six hundred twenty-eight".