53550563648317 has 2 divisors, whose sum is σ = 53550563648318. Its totient is φ = 53550563648316.

The previous prime is 53550563648279. The next prime is 53550563648347. The reversal of 53550563648317 is 71384636505535.

It is a happy number.

53550563648317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53161903670841 + 388659977476 = 7291221^2 + 623426^2 .

It is a cyclic number.

It is not a de Polignac number, because 53550563648317 - 2⁷ = 53550563648189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53550563648347) 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, 26775281824158 + 26775281824159.

It is an arithmetic number, because the mean of its divisors is an integer number (26775281824159).

Almost surely, 2^{53550563648317} is an apocalyptic number.

It is an amenable number.

53550563648317 is a deficient number, since it is larger than the sum of its proper divisors (1).

53550563648317 is an equidigital number, since it uses as much as digits as its factorization.

53550563648317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080000, while the sum is 61.

The spelling of 53550563648317 in words is "fifty-three trillion, five hundred fifty billion, five hundred sixty-three million, six hundred forty-eight thousand, three hundred seventeen".