505004 has 12 divisors (see below), whose sum is σ = 889728. Its totient is φ = 250800.

The previous prime is 504991. The next prime is 505027. The reversal of 505004 is 400505.

It is a self number, because there is not a number n which added to its sum of digits gives 505004.

It is an unprimeable number.

505004 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434 + ... + 1094.

It is an arithmetic number, because the mean of its divisors is an integer number (74144).

2⁵⁰⁵⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

505004 is a deficient number, since it is larger than the sum of its proper divisors (384724).

505004 is a wasteful number, since it uses less digits than its factorization.

505004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 14.

The square root of 505004 is about 710.6363345622. The cubic root of 505004 is about 79.6339526714.

Adding to 505004 its reverse (400505), we get a palindrome (905509).

The spelling of 505004 in words is "five hundred five thousand, four".