5208317531 has 2 divisors, whose sum is σ = 5208317532. Its totient is φ = 5208317530.

The previous prime is 5208317507. The next prime is 5208317599. The reversal of 5208317531 is 1357138025.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5208317531 is a prime.

It is a super-2 number, since 2×5208317531² = 54253143007443871922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5208317491 and 5208317500.

It is not a weakly prime, because it can be changed into another prime (5208317131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2604158765 + 2604158766.

It is an arithmetic number, because the mean of its divisors is an integer number (2604158766).

Almost surely, 2^5208317531 is an apocalyptic number.

5208317531 is a deficient number, since it is larger than the sum of its proper divisors (1).

5208317531 is an equidigital number, since it uses as much as digits as its factorization.

5208317531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 5208317531 is about 72168.6741668433. The cubic root of 5208317531 is about 1733.4014327987.

The spelling of 5208317531 in words is "five billion, two hundred eight million, three hundred seventeen thousand, five hundred thirty-one".