253568699317 has 2 divisors, whose sum is σ = 253568699318. Its totient is φ = 253568699316.

The previous prime is 253568699213. The next prime is 253568699341. The reversal of 253568699317 is 713996865352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163641284676 + 89927414641 = 404526^2 + 299879^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253568699317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253568699117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126784349658 + 126784349659.

It is an arithmetic number, because the mean of its divisors is an integer number (126784349659).

Almost surely, 2^253568699317 is an apocalyptic number.

It is an amenable number.

253568699317 is a deficient number, since it is larger than the sum of its proper divisors (1).

253568699317 is an equidigital number, since it uses as much as digits as its factorization.

253568699317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73483200, while the sum is 64.

The spelling of 253568699317 in words is "two hundred fifty-three billion, five hundred sixty-eight million, six hundred ninety-nine thousand, three hundred seventeen".