505043 has 12 divisors (see below), whose sum is σ = 641592. Its totient is φ = 393120.

The previous prime is 505033. The next prime is 505049. The reversal of 505043 is 340505.

It is not a de Polignac number, because 505043 - 2⁴ = 505027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71 + ... + 1007.

It is an arithmetic number, because the mean of its divisors is an integer number (53466).

2⁵⁰⁵⁰⁴³ is an apocalyptic number.

505043 is a deficient number, since it is larger than the sum of its proper divisors (136549).

505043 is a wasteful number, since it uses less digits than its factorization.

505043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962 (or 955 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 505043 is about 710.6637742280. The cubic root of 505043 is about 79.6360025854.

Adding to 505043 its reverse (340505), we get a palindrome (845548).

The spelling of 505043 in words is "five hundred five thousand, forty-three".