51350366293 has 2 divisors, whose sum is σ = 51350366294. Its totient is φ = 51350366292.

The previous prime is 51350366279. The next prime is 51350366317. The reversal of 51350366293 is 39266305315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44737749169 + 6612617124 = 211513^2 + 81318^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51350366293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51350366593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25675183146 + 25675183147.

It is an arithmetic number, because the mean of its divisors is an integer number (25675183147).

Almost surely, 2^51350366293 is an apocalyptic number.

It is an amenable number.

51350366293 is a deficient number, since it is larger than the sum of its proper divisors (1).

51350366293 is an equidigital number, since it uses as much as digits as its factorization.

51350366293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 437400, while the sum is 43.

The spelling of 51350366293 in words is "fifty-one billion, three hundred fifty million, three hundred sixty-six thousand, two hundred ninety-three".