5315216609 has 2 divisors, whose sum is σ = 5315216610. Its totient is φ = 5315216608.

The previous prime is 5315216581. The next prime is 5315216623. The reversal of 5315216609 is 9066125135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5021848225 + 293368384 = 70865^2 + 17128^2 .

It is a cyclic number.

It is not a de Polignac number, because 5315216609 - 2²⁰ = 5314168033 is a prime.

It is not a weakly prime, because it can be changed into another prime (5315216629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2657608304 + 2657608305.

It is an arithmetic number, because the mean of its divisors is an integer number (2657608305).

Almost surely, 2^5315216609 is an apocalyptic number.

It is an amenable number.

5315216609 is a deficient number, since it is larger than the sum of its proper divisors (1).

5315216609 is an equidigital number, since it uses as much as digits as its factorization.

5315216609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 5315216609 is about 72905.5320877641. The cubic root of 5315216609 is about 1745.1803831558.

The spelling of 5315216609 in words is "five billion, three hundred fifteen million, two hundred sixteen thousand, six hundred nine".