51706515277 has 2 divisors, whose sum is σ = 51706515278. Its totient is φ = 51706515276.

The previous prime is 51706515233. The next prime is 51706515283. The reversal of 51706515277 is 77251560715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47045176201 + 4661339076 = 216899^2 + 68274^2 .

It is a cyclic number.

It is not a de Polignac number, because 51706515277 - 2¹⁹ = 51705990989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51706515227) 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, 25853257638 + 25853257639.

It is an arithmetic number, because the mean of its divisors is an integer number (25853257639).

Almost surely, 2^51706515277 is an apocalyptic number.

It is an amenable number.

51706515277 is a deficient number, since it is larger than the sum of its proper divisors (1).

51706515277 is an equidigital number, since it uses as much as digits as its factorization.

51706515277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 514500, while the sum is 46.

The spelling of 51706515277 in words is "fifty-one billion, seven hundred six million, five hundred fifteen thousand, two hundred seventy-seven".