506116531 has 4 divisors (see below), whose sum is σ = 506190672. Its totient is φ = 506042392.

The previous prime is 506116529. The next prime is 506116553. The reversal of 506116531 is 135611605.

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

It is a cyclic number.

It is not a de Polignac number, because 506116531 - 2¹ = 506116529 is a prime.

It is a super-2 number, since 2×506116531² = 512307885902947922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 506116531.

It is not an unprimeable number, because it can be changed into a prime (506116511) 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, 25660 + ... + 40873.

It is an arithmetic number, because the mean of its divisors is an integer number (126547668).

Almost surely, 2^506116531 is an apocalyptic number.

506116531 is a deficient number, since it is larger than the sum of its proper divisors (74141).

506116531 is an equidigital number, since it uses as much as digits as its factorization.

506116531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74140.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 506116531 is about 22497.0338267070. The cubic root of 506116531 is about 796.9238802486.

The spelling of 506116531 in words is "five hundred six million, one hundred sixteen thousand, five hundred thirty-one".