204255 has 32 divisors (see below), whose sum is σ = 388800. Its totient is φ = 101376.

The previous prime is 204251. The next prime is 204299. The reversal of 204255 is 552402.

It is not a de Polignac number, because 204255 - 2² = 204251 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 204255.

It is not an unprimeable number, because it can be changed into a prime (204251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2251 + ... + 2339.

It is an arithmetic number, because the mean of its divisors is an integer number (12150).

2²⁰⁴²⁵⁵ is an apocalyptic number.

204255 is a deficient number, since it is larger than the sum of its proper divisors (184545).

204255 is a wasteful number, since it uses less digits than its factorization.

204255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 204255 is about 451.9457932098. The cubic root of 204255 is about 58.8921711447.

Adding to 204255 its reverse (552402), we get a palindrome (756657).

The spelling of 204255 in words is "two hundred four thousand, two hundred fifty-five".