506558 has 8 divisors (see below), whose sum is σ = 818328. Its totient is φ = 233784.

The previous prime is 506551. The next prime is 506563. The reversal of 506558 is 855605.

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

It is a self number, because there is not a number n which added to its sum of digits gives 506558.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 9716 + ... + 9767.

It is an arithmetic number, because the mean of its divisors is an integer number (102291).

2⁵⁰⁶⁵⁵⁸ is an apocalyptic number.

506558 is a deficient number, since it is larger than the sum of its proper divisors (311770).

506558 is a wasteful number, since it uses less digits than its factorization.

506558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19498.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 506558 is about 711.7288809652. The cubic root of 506558 is about 79.7155523176.

The spelling of 506558 in words is "five hundred six thousand, five hundred fifty-eight".