5315325661 has 2 divisors, whose sum is σ = 5315325662. Its totient is φ = 5315325660.

The previous prime is 5315325607. The next prime is 5315325671. The reversal of 5315325661 is 1665235135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4623320025 + 692005636 = 67995^2 + 26306^2 .

It is a cyclic number.

It is not a de Polignac number, because 5315325661 - 2⁹ = 5315325149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5315325661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5315325671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2657662830 + 2657662831.

It is an arithmetic number, because the mean of its divisors is an integer number (2657662831).

Almost surely, 2^5315325661 is an apocalyptic number.

It is an amenable number.

5315325661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5315325661 is an equidigital number, since it uses as much as digits as its factorization.

5315325661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81000, while the sum is 37.

The square root of 5315325661 is about 72906.2799832772. The cubic root of 5315325661 is about 1745.1923183301.

The spelling of 5315325661 in words is "five billion, three hundred fifteen million, three hundred twenty-five thousand, six hundred sixty-one".