505539 has 6 divisors (see below), whose sum is σ = 730236. Its totient is φ = 337020.

The previous prime is 505537. The next prime is 505559. The reversal of 505539 is 935505.

It is not a de Polignac number, because 505539 - 2¹ = 505537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505537) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28077 + ... + 28094.

It is an arithmetic number, because the mean of its divisors is an integer number (121706).

2⁵⁰⁵⁵³⁹ is an apocalyptic number.

505539 is a deficient number, since it is larger than the sum of its proper divisors (224697).

505539 is a wasteful number, since it uses less digits than its factorization.

505539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56177 (or 56174 counting only the distinct ones).

The product of its (nonzero) digits is 3375, while the sum is 27.

The square root of 505539 is about 711.0126581152. The cubic root of 505539 is about 79.6620640848.

The spelling of 505539 in words is "five hundred five thousand, five hundred thirty-nine".