50040308209 has 2 divisors, whose sum is σ = 50040308210. Its totient is φ = 50040308208.

The previous prime is 50040308177. The next prime is 50040308237. The reversal of 50040308209 is 90280304005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41544630625 + 8495677584 = 203825^2 + 92172^2 .

It is a cyclic number.

It is not a de Polignac number, because 50040308209 - 2⁵ = 50040308177 is a prime.

It is not a weakly prime, because it can be changed into another prime (50040308509) 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, 25020154104 + 25020154105.

It is an arithmetic number, because the mean of its divisors is an integer number (25020154105).

Almost surely, 2^50040308209 is an apocalyptic number.

It is an amenable number.

50040308209 is a deficient number, since it is larger than the sum of its proper divisors (1).

50040308209 is an equidigital number, since it uses as much as digits as its factorization.

50040308209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 50040308209 in words is "fifty billion, forty million, three hundred eight thousand, two hundred nine".