505204 has 12 divisors (see below), whose sum is σ = 1010464. Its totient is φ = 216504.

The previous prime is 505201. The next prime is 505213. The reversal of 505204 is 402505.

It is a happy number.

505204 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505201) 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, 8994 + ... + 9049.

2⁵⁰⁵²⁰⁴ is an apocalyptic number.

It is an amenable number.

505204 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505204 is a wasteful number, since it uses less digits than its factorization.

505204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18054 (or 18052 counting only the distinct ones).

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

The square root of 505204 is about 710.7770395841. Note that the first 3 decimals coincide. The cubic root of 505204 is about 79.6444639337.

Adding to 505204 its reverse (402505), we get a palindrome (907709).

The spelling of 505204 in words is "five hundred five thousand, two hundred four".