516505 has 8 divisors (see below), whose sum is σ = 676224. Its totient is φ = 375600.

The previous prime is 516499. The next prime is 516517. The reversal of 516505 is 505615.

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

It is not a de Polignac number, because 516505 - 2⁷ = 516377 is a prime.

It is a Duffinian number.

516505 is a lucky number.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable 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 7 ways as a sum of consecutive naturals, for example, 4641 + ... + 4750.

It is an arithmetic number, because the mean of its divisors is an integer number (84528).

2⁵¹⁶⁵⁰⁵ is an apocalyptic number.

516505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

516505 is a deficient number, since it is larger than the sum of its proper divisors (159719).

516505 is a wasteful number, since it uses less digits than its factorization.

516505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9407.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 516505 is about 718.6828229476. The cubic root of 516505 is about 80.2339505888.

It can be divided in two parts, 51 and 6505, that added together give a palindrome (6556).

The spelling of 516505 in words is "five hundred sixteen thousand, five hundred five".