50213209 has 8 divisors (see below), whose sum is σ = 52508160. Its totient is φ = 48018388.

The previous prime is 50213197. The next prime is 50213231. The reversal of 50213209 is 90231205.

It is not a de Polignac number, because 50213209 - 2¹⁹ = 49688921 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50213209.

It is not an unprimeable number, because it can be changed into a prime (50213279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10104 + ... + 14230.

It is an arithmetic number, because the mean of its divisors is an integer number (6563520).

Almost surely, 2^50213209 is an apocalyptic number.

It is an amenable number.

50213209 is a deficient number, since it is larger than the sum of its proper divisors (2294951).

50213209 is an frugal number, since it uses more digits than its factorization.

50213209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4196 (or 4150 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 50213209 is about 7086.1279271546. The cubic root of 50213209 is about 368.9260530969.

The spelling of 50213209 in words is "fifty million, two hundred thirteen thousand, two hundred nine".