204550 has 12 divisors (see below), whose sum is σ = 380556. Its totient is φ = 81800.

The previous prime is 204521. The next prime is 204557. The reversal of 204550 is 55402.

It is a happy number.

204550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204557) 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, 1996 + ... + 2095.

It is an arithmetic number, because the mean of its divisors is an integer number (31713).

2²⁰⁴⁵⁵⁰ is an apocalyptic number.

204550 is a deficient number, since it is larger than the sum of its proper divisors (176006).

204550 is a wasteful number, since it uses less digits than its factorization.

204550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103 (or 4098 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 204550 is about 452.2720420278. The cubic root of 204550 is about 58.9205096322.

Adding to 204550 its reverse (55402), we get a palindrome (259952).

The spelling of 204550 in words is "two hundred four thousand, five hundred fifty".