505311304 has 32 divisors (see below), whose sum is σ = 963990720. Its totient is φ = 248280256.

The previous prime is 505311293. The next prime is 505311337. The reversal of 505311304 is 403113505.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 128877 + ... + 132739.

It is an arithmetic number, because the mean of its divisors is an integer number (30124710).

Almost surely, 2^505311304 is an apocalyptic number.

It is an amenable number.

505311304 is a deficient number, since it is larger than the sum of its proper divisors (458679416).

505311304 is a wasteful number, since it uses less digits than its factorization.

505311304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4149 (or 4145 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 505311304 is about 22479.1304102272. The cubic root of 505311304 is about 796.5010229271.

Adding to 505311304 its reverse (403113505), we get a palindrome (908424809).

The spelling of 505311304 in words is "five hundred five million, three hundred eleven thousand, three hundred four".