6506695313 has 2 divisors, whose sum is σ = 6506695314. Its totient is φ = 6506695312.

The previous prime is 6506695303. The next prime is 6506695381. The reversal of 6506695313 is 3135966056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6142954129 + 363741184 = 78377^2 + 19072^2 .

It is a cyclic number.

It is not a de Polignac number, because 6506695313 - 2²⁰ = 6505646737 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6506695303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3253347656 + 3253347657.

It is an arithmetic number, because the mean of its divisors is an integer number (3253347657).

Almost surely, 2^6506695313 is an apocalyptic number.

It is an amenable number.

6506695313 is a deficient number, since it is larger than the sum of its proper divisors (1).

6506695313 is an equidigital number, since it uses as much as digits as its factorization.

6506695313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 437400, while the sum is 44.

The square root of 6506695313 is about 80664.0893644749. The cubic root of 6506695313 is about 1866.8961362282.

The spelling of 6506695313 in words is "six billion, five hundred six million, six hundred ninety-five thousand, three hundred thirteen".