505606 has 8 divisors (see below), whose sum is σ = 766224. Its totient is φ = 250200.

The previous prime is 505601. The next prime is 505607. The reversal of 505606 is 606505.

505606 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050 + ... + 1453.

It is an arithmetic number, because the mean of its divisors is an integer number (95778).

2⁵⁰⁵⁶⁰⁶ is an apocalyptic number.

505606 is a deficient number, since it is larger than the sum of its proper divisors (260618).

505606 is a wasteful number, since it uses less digits than its factorization.

505606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2606.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 505606 is about 711.0597724524. The cubic root of 505606 is about 79.6655831819.

Adding to 505606 its reverse (606505), we get a palindrome (1112111).

It can be divided in two parts, 505 and 606, that added together give a palindrome (1111).

The spelling of 505606 in words is "five hundred five thousand, six hundred six".