225304 has 8 divisors (see below), whose sum is σ = 422460. Its totient is φ = 112648.

The previous prime is 225299. The next prime is 225307. The reversal of 225304 is 403522.

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14074 + ... + 14089.

2²²⁵³⁰⁴ is an apocalyptic number.

It is an amenable number.

225304 is a deficient number, since it is larger than the sum of its proper divisors (197156).

225304 is a wasteful number, since it uses less digits than its factorization.

225304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28169 (or 28165 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 225304 is about 474.6619849956. The cubic root of 225304 is about 60.8494000639.

Adding to 225304 its reverse (403522), we get a palindrome (628826).

It can be divided in two parts, 225 and 304, that added together give a square (529 = 23²).

The spelling of 225304 in words is "two hundred twenty-five thousand, three hundred four".