51550435063 has 2 divisors, whose sum is σ = 51550435064. Its totient is φ = 51550435062.

The previous prime is 51550435007. The next prime is 51550435099. The reversal of 51550435063 is 36053405515.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51550435063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51550535063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25775217531 + 25775217532.

It is an arithmetic number, because the mean of its divisors is an integer number (25775217532).

Almost surely, 2^51550435063 is an apocalyptic number.

51550435063 is a deficient number, since it is larger than the sum of its proper divisors (1).

51550435063 is an equidigital number, since it uses as much as digits as its factorization.

51550435063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135000, while the sum is 37.

The spelling of 51550435063 in words is "fifty-one billion, five hundred fifty million, four hundred thirty-five thousand, sixty-three".