506546317 has 4 divisors (see below), whose sum is σ = 520236796. Its totient is φ = 492855840.

The previous prime is 506546303. The next prime is 506546347. The reversal of 506546317 is 713645605.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 491908041 + 14638276 = 22179^2 + 3826^2 .

It is a cyclic number.

It is not a de Polignac number, because 506546317 - 2⁷ = 506546189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 13690441 = 506546317 / (5 + 0 + 6 + 5 + 4 + 6 + 3 + 1 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506546347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6845184 + ... + 6845257.

It is an arithmetic number, because the mean of its divisors is an integer number (130059199).

Almost surely, 2^506546317 is an apocalyptic number.

It is an amenable number.

506546317 is a deficient number, since it is larger than the sum of its proper divisors (13690479).

506546317 is a wasteful number, since it uses less digits than its factorization.

506546317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13690478.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 506546317 is about 22506.5838589511. The cubic root of 506546317 is about 797.1493947307.

The spelling of 506546317 in words is "five hundred six million, five hundred forty-six thousand, three hundred seventeen".