51544330163 has 2 divisors, whose sum is σ = 51544330164. Its totient is φ = 51544330162.

The previous prime is 51544330129. The next prime is 51544330181. The reversal of 51544330163 is 36103344515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51544330163 - 2²⁸ = 51275894707 is a prime.

It is not a weakly prime, because it can be changed into another prime (51544330183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25772165081 + 25772165082.

It is an arithmetic number, because the mean of its divisors is an integer number (25772165082).

Almost surely, 2^51544330163 is an apocalyptic number.

51544330163 is a deficient number, since it is larger than the sum of its proper divisors (1).

51544330163 is an equidigital number, since it uses as much as digits as its factorization.

51544330163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 51544330163 its reverse (36103344515), we get a palindrome (87647674678).

The spelling of 51544330163 in words is "fifty-one billion, five hundred forty-four million, three hundred thirty thousand, one hundred sixty-three".