50208209 has 2 divisors, whose sum is σ = 50208210. Its totient is φ = 50208208.

The previous prime is 50208181. The next prime is 50208229. The reversal of 50208209 is 90280205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28090000 + 22118209 = 5300^2 + 4703^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50208209 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50208229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25104104 + 25104105.

It is an arithmetic number, because the mean of its divisors is an integer number (25104105).

Almost surely, 2^50208209 is an apocalyptic number.

It is an amenable number.

50208209 is a deficient number, since it is larger than the sum of its proper divisors (1).

50208209 is an equidigital number, since it uses as much as digits as its factorization.

50208209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 50208209 is about 7085.7751163864. The cubic root of 50208209 is about 368.9138073715.

The spelling of 50208209 in words is "fifty million, two hundred eight thousand, two hundred nine".