51706055699 has 2 divisors, whose sum is σ = 51706055700. Its totient is φ = 51706055698.

The previous prime is 51706055663. The next prime is 51706055761. The reversal of 51706055699 is 99655060715.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51706055699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51706055699.

It is not a weakly prime, because it can be changed into another prime (51706055299) 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, 25853027849 + 25853027850.

It is an arithmetic number, because the mean of its divisors is an integer number (25853027850).

Almost surely, 2^51706055699 is an apocalyptic number.

51706055699 is a deficient number, since it is larger than the sum of its proper divisors (1).

51706055699 is an equidigital number, since it uses as much as digits as its factorization.

51706055699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2551500, while the sum is 53.

The spelling of 51706055699 in words is "fifty-one billion, seven hundred six million, fifty-five thousand, six hundred ninety-nine".