506318633 has 4 divisors (see below), whose sum is σ = 536102100. Its totient is φ = 476535168.

The previous prime is 506318623. The next prime is 506318641. The reversal of 506318633 is 336813605.

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 458473744 + 47844889 = 21412^2 + 6917^2 .

It is a cyclic number.

It is not a de Polignac number, because 506318633 - 2⁸ = 506318377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 506318593 and 506318602.

It is not an unprimeable number, because it can be changed into a prime (506318623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14891708 + ... + 14891741.

It is an arithmetic number, because the mean of its divisors is an integer number (134025525).

Almost surely, 2^506318633 is an apocalyptic number.

It is an amenable number.

506318633 is a deficient number, since it is larger than the sum of its proper divisors (29783467).

506318633 is a wasteful number, since it uses less digits than its factorization.

506318633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29783466.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 506318633 is about 22501.5251260887. The cubic root of 506318633 is about 797.0299417758.

The spelling of 506318633 in words is "five hundred six million, three hundred eighteen thousand, six hundred thirty-three".