50666739229 has 2 divisors, whose sum is σ = 50666739230. Its totient is φ = 50666739228.

The previous prime is 50666739209. The next prime is 50666739241. The reversal of 50666739229 is 92293766605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40222308025 + 10444431204 = 200555^2 + 102198^2 .

It is a cyclic number.

It is not a de Polignac number, because 50666739229 - 2⁵ = 50666739197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50666739229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50666739209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25333369614 + 25333369615.

It is an arithmetic number, because the mean of its divisors is an integer number (25333369615).

Almost surely, 2^50666739229 is an apocalyptic number.

It is an amenable number.

50666739229 is a deficient number, since it is larger than the sum of its proper divisors (1).

50666739229 is an equidigital number, since it uses as much as digits as its factorization.

50666739229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7348320, while the sum is 55.

The spelling of 50666739229 in words is "fifty billion, six hundred sixty-six million, seven hundred thirty-nine thousand, two hundred twenty-nine".