50108209 has 4 divisors (see below), whose sum is σ = 50186304. Its totient is φ = 50030116.

The previous prime is 50108189. The next prime is 50108213. The reversal of 50108209 is 90280105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90280105 = 5 ⋅18056021.

It is a cyclic number.

It is not a de Polignac number, because 50108209 - 2¹⁹ = 49583921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50108269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38077 + ... + 39370.

It is an arithmetic number, because the mean of its divisors is an integer number (12546576).

Almost surely, 2^50108209 is an apocalyptic number.

It is an amenable number.

50108209 is a deficient number, since it is larger than the sum of its proper divisors (78095).

50108209 is an equidigital number, since it uses as much as digits as its factorization.

50108209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78094.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 50108209 is about 7078.7152082846. The cubic root of 50108209 is about 368.6687219504.

The spelling of 50108209 in words is "fifty million, one hundred eight thousand, two hundred nine".