50316809 has 2 divisors, whose sum is σ = 50316810. Its totient is φ = 50316808.

The previous prime is 50316779. The next prime is 50316811. The reversal of 50316809 is 90861305.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30558784 + 19758025 = 5528^2 + 4445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50316809 is a prime.

Together with 50316811, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50316859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25158404 + 25158405.

It is an arithmetic number, because the mean of its divisors is an integer number (25158405).

Almost surely, 2^50316809 is an apocalyptic number.

It is an amenable number.

50316809 is a deficient number, since it is larger than the sum of its proper divisors (1).

50316809 is an equidigital number, since it uses as much as digits as its factorization.

50316809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 50316809 is about 7093.4342176410. The cubic root of 50316809 is about 369.1796018094.

The spelling of 50316809 in words is "fifty million, three hundred sixteen thousand, eight hundred nine".