505331204 has 24 divisors (see below), whose sum is σ = 1011698688. Its totient is φ = 216348480.

The previous prime is 505331161. The next prime is 505331207. The reversal of 505331204 is 402133505.

It is a self number, because there is not a number n which added to its sum of digits gives 505331204.

It is not an unprimeable number, because it can be changed into a prime (505331207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20189 + ... + 37659.

It is an arithmetic number, because the mean of its divisors is an integer number (42154112).

Almost surely, 2^505331204 is an apocalyptic number.

It is an amenable number.

505331204 is an abundant number, since it is smaller than the sum of its proper divisors (506367484).

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

505331204 is a wasteful number, since it uses less digits than its factorization.

505331204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18515 (or 18513 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 505331204 is about 22479.5730386500. The cubic root of 505331204 is about 796.5114786351.

Adding to 505331204 its reverse (402133505), we get a palindrome (907464709).

The spelling of 505331204 in words is "five hundred five million, three hundred thirty-one thousand, two hundred four".