50016809 has 2 divisors, whose sum is σ = 50016810. Its totient is φ = 50016808.

The previous prime is 50016781. The next prime is 50016847. The reversal of 50016809 is 90861005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43626025 + 6390784 = 6605^2 + 2528^2 .

It is a cyclic number.

It is not a de Polignac number, because 50016809 - 2⁸ = 50016553 is a prime.

It is not a weakly prime, because it can be changed into another prime (50016209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25008404 + 25008405.

It is an arithmetic number, because the mean of its divisors is an integer number (25008405).

Almost surely, 2^50016809 is an apocalyptic number.

It is an amenable number.

50016809 is a deficient number, since it is larger than the sum of its proper divisors (1).

50016809 is an equidigital number, since it uses as much as digits as its factorization.

50016809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 50016809 is about 7072.2562877769. The cubic root of 50016809 is about 368.4444284957. Note that the first 4 decimals are identical.

The spelling of 50016809 in words is "fifty million, sixteen thousand, eight hundred nine".