51335512099 has 2 divisors, whose sum is σ = 51335512100. Its totient is φ = 51335512098.

The previous prime is 51335512093. The next prime is 51335512169. The reversal of 51335512099 is 99021553315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51335512099 - 2⁷ = 51335511971 is a prime.

It is not a weakly prime, because it can be changed into another prime (51335512093) 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, 25667756049 + 25667756050.

It is an arithmetic number, because the mean of its divisors is an integer number (25667756050).

Almost surely, 2^51335512099 is an apocalyptic number.

51335512099 is a deficient number, since it is larger than the sum of its proper divisors (1).

51335512099 is an equidigital number, since it uses as much as digits as its factorization.

51335512099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 182250, while the sum is 43.

The spelling of 51335512099 in words is "fifty-one billion, three hundred thirty-five million, five hundred twelve thousand, ninety-nine".