53486642317 has 2 divisors, whose sum is σ = 53486642318. Its totient is φ = 53486642316.

The previous prime is 53486642213. The next prime is 53486642323. The reversal of 53486642317 is 71324668435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50346833161 + 3139809156 = 224381^2 + 56034^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53486642317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53486642327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26743321158 + 26743321159.

It is an arithmetic number, because the mean of its divisors is an integer number (26743321159).

Almost surely, 2^53486642317 is an apocalyptic number.

It is an amenable number.

53486642317 is a deficient number, since it is larger than the sum of its proper divisors (1).

53486642317 is an equidigital number, since it uses as much as digits as its factorization.

53486642317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 49.

The spelling of 53486642317 in words is "fifty-three billion, four hundred eighty-six million, six hundred forty-two thousand, three hundred seventeen".