506559 has 8 divisors (see below), whose sum is σ = 711040. Its totient is φ = 319896.

The previous prime is 506551. The next prime is 506563. The reversal of 506559 is 955605.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 506559 - 2³ = 506551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 506559.

It is not an unprimeable number, because it can be changed into a prime (506551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4387 + ... + 4500.

It is an arithmetic number, because the mean of its divisors is an integer number (88880).

2⁵⁰⁶⁵⁵⁹ is an apocalyptic number.

506559 is a deficient number, since it is larger than the sum of its proper divisors (204481).

506559 is a wasteful number, since it uses less digits than its factorization.

506559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8909.

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 506559 is about 711.7295834796. The cubic root of 506559 is about 79.7156047733.

The spelling of 506559 in words is "five hundred six thousand, five hundred fifty-nine".