5215317637 has 2 divisors, whose sum is σ = 5215317638. Its totient is φ = 5215317636.

The previous prime is 5215317623. The next prime is 5215317683. The reversal of 5215317637 is 7367135125.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4956300801 + 259016836 = 70401^2 + 16094^2 .

It is a cyclic number.

It is not a de Polignac number, because 5215317637 - 2¹⁵ = 5215284869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5215317637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5215347637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2607658818 + 2607658819.

It is an arithmetic number, because the mean of its divisors is an integer number (2607658819).

Almost surely, 2^5215317637 is an apocalyptic number.

It is an amenable number.

5215317637 is a deficient number, since it is larger than the sum of its proper divisors (1).

5215317637 is an equidigital number, since it uses as much as digits as its factorization.

5215317637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 132300, while the sum is 40.

The square root of 5215317637 is about 72217.1561126579. The cubic root of 5215317637 is about 1734.1776631024.

The spelling of 5215317637 in words is "five billion, two hundred fifteen million, three hundred seventeen thousand, six hundred thirty-seven".