505303039 has 4 divisors (see below), whose sum is σ = 511699360. Its totient is φ = 498906720.

The previous prime is 505303021. The next prime is 505303061. The reversal of 505303039 is 930303505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930303505 = 5 ⋅186060701.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505303039 is a prime.

It is a super-2 number, since 2×505303039² = 510662322445271042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505302998 and 505303016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505303739) 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, 3198042 + ... + 3198199.

It is an arithmetic number, because the mean of its divisors is an integer number (127924840).

Almost surely, 2^505303039 is an apocalyptic number.

505303039 is a deficient number, since it is larger than the sum of its proper divisors (6396321).

505303039 is an equidigital number, since it uses as much as digits as its factorization.

505303039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6396320.

The product of its (nonzero) digits is 6075, while the sum is 28.

The square root of 505303039 is about 22478.9465722929. The cubic root of 505303039 is about 796.4966803125.

The spelling of 505303039 in words is "five hundred five million, three hundred three thousand, thirty-nine".