506589 has 4 divisors (see below), whose sum is σ = 675456. Its totient is φ = 337724.

The previous prime is 506573. The next prime is 506591. The reversal of 506589 is 985605.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 506589 - 2⁴ = 506573 is a prime.

It is a D-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 506589.

It is not an unprimeable number, because it can be changed into a prime (506599) 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, 84429 + ... + 84434.

It is an arithmetic number, because the mean of its divisors is an integer number (168864).

2⁵⁰⁶⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

506589 is a deficient number, since it is larger than the sum of its proper divisors (168867).

506589 is a wasteful number, since it uses less digits than its factorization.

506589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168866.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 506589 is about 711.7506585877. The cubic root of 506589 is about 79.7171784109.

The spelling of 506589 in words is "five hundred six thousand, five hundred eighty-nine".