315917504953 has 2 divisors, whose sum is σ = 315917504954. Its totient is φ = 315917504952.

The previous prime is 315917504941. The next prime is 315917504971. The reversal of 315917504953 is 359405719513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181230706944 + 134686798009 = 425712^2 + 366997^2 .

It is a cyclic number.

It is not a de Polignac number, because 315917504953 - 2³⁷ = 178478551481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315917504953.

It is not a weakly prime, because it can be changed into another prime (315917504923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157958752476 + 157958752477.

It is an arithmetic number, because the mean of its divisors is an integer number (157958752477).

Almost surely, 2^315917504953 is an apocalyptic number.

It is an amenable number.

315917504953 is a deficient number, since it is larger than the sum of its proper divisors (1).

315917504953 is an equidigital number, since it uses as much as digits as its factorization.

315917504953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2551500, while the sum is 52.

The spelling of 315917504953 in words is "three hundred fifteen billion, nine hundred seventeen million, five hundred four thousand, nine hundred fifty-three".