505916 has 12 divisors (see below), whose sum is σ = 897120. Its totient is φ = 249600.

The previous prime is 505907. The next prime is 505919. The reversal of 505916 is 619505.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505919) by changing a digit.

505916 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 485 + ... + 1116.

It is an arithmetic number, because the mean of its divisors is an integer number (74760).

2⁵⁰⁵⁹¹⁶ is an apocalyptic number.

It is an amenable number.

505916 is a deficient number, since it is larger than the sum of its proper divisors (391204).

505916 is a wasteful number, since it uses less digits than its factorization.

505916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684 (or 1682 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 505916 is about 711.2777235370. The cubic root of 505916 is about 79.6818615259.

The spelling of 505916 in words is "five hundred five thousand, nine hundred sixteen".