5215115317 has 2 divisors, whose sum is σ = 5215115318. Its totient is φ = 5215115316.

The previous prime is 5215115303. The next prime is 5215115329. The reversal of 5215115317 is 7135115125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4979983761 + 235131556 = 70569^2 + 15334^2 .

It is a cyclic number.

It is not a de Polignac number, because 5215115317 - 2¹⁹ = 5214591029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5215115357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2607557658 + 2607557659.

It is an arithmetic number, because the mean of its divisors is an integer number (2607557659).

Almost surely, 2^5215115317 is an apocalyptic number.

It is an amenable number.

5215115317 is a deficient number, since it is larger than the sum of its proper divisors (1).

5215115317 is an equidigital number, since it uses as much as digits as its factorization.

5215115317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5250, while the sum is 31.

The square root of 5215115317 is about 72215.7553238904. The cubic root of 5215115317 is about 1734.1552379191.

The spelling of 5215115317 in words is "five billion, two hundred fifteen million, one hundred fifteen thousand, three hundred seventeen".