505585317 has 8 divisors (see below), whose sum is σ = 674221696. Its totient is φ = 337002912.

The previous prime is 505585247. The next prime is 505585343. The reversal of 505585317 is 713585505.

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

It is not a de Polignac number, because 505585317 - 2⁷ = 505585189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505585397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20868 + ... + 38034.

It is an arithmetic number, because the mean of its divisors is an integer number (84277712).

Almost surely, 2^505585317 is an apocalyptic number.

It is an amenable number.

505585317 is a deficient number, since it is larger than the sum of its proper divisors (168636379).

505585317 is a wasteful number, since it uses less digits than its factorization.

505585317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26987.

The product of its (nonzero) digits is 105000, while the sum is 39.

The square root of 505585317 is about 22485.2244151576. The cubic root of 505585317 is about 796.6449686459.

The spelling of 505585317 in words is "five hundred five million, five hundred eighty-five thousand, three hundred seventeen".