50503708909 has 2 divisors, whose sum is σ = 50503708910. Its totient is φ = 50503708908.

The previous prime is 50503708897. The next prime is 50503708933. The reversal of 50503708909 is 90980730505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39103876009 + 11399832900 = 197747^2 + 106770^2 .

It is a cyclic number.

It is not a de Polignac number, because 50503708909 - 2⁵ = 50503708877 is a prime.

It is a super-2 number, since 2×50503708909² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50503709909) 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, 25251854454 + 25251854455.

It is an arithmetic number, because the mean of its divisors is an integer number (25251854455).

Almost surely, 2^50503708909 is an apocalyptic number.

It is an amenable number.

50503708909 is a deficient number, since it is larger than the sum of its proper divisors (1).

50503708909 is an equidigital number, since it uses as much as digits as its factorization.

50503708909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 340200, while the sum is 46.

The spelling of 50503708909 in words is "fifty billion, five hundred three million, seven hundred eight thousand, nine hundred nine".