505039 has 6 divisors (see below), whose sum is σ = 533400. Its totient is φ = 478116.

The previous prime is 505033. The next prime is 505049. The reversal of 505039 is 930505.

It is not a de Polignac number, because 505039 - 2³ = 505031 is a prime.

It is a Duffinian number.

505039 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505031) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 339 + ... + 1060.

It is an arithmetic number, because the mean of its divisors is an integer number (88900).

2⁵⁰⁵⁰³⁹ is an apocalyptic number.

505039 is a deficient number, since it is larger than the sum of its proper divisors (28361).

505039 is a wasteful number, since it uses less digits than its factorization.

505039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437 (or 1418 counting only the distinct ones).

The product of its (nonzero) digits is 675, while the sum is 22.

The square root of 505039 is about 710.6609599521. The cubic root of 505039 is about 79.6357923427.

The spelling of 505039 in words is "five hundred five thousand, thirty-nine".