50979209 has 8 divisors (see below), whose sum is σ = 55234080. Its totient is φ = 46863936.

The previous prime is 50979179. The next prime is 50979217. The reversal of 50979209 is 90297905.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50979209 - 2⁸ = 50978953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50979259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34139 + ... + 35600.

It is an arithmetic number, because the mean of its divisors is an integer number (6904260).

Almost surely, 2^50979209 is an apocalyptic number.

It is an amenable number.

50979209 is a deficient number, since it is larger than the sum of its proper divisors (4254871).

50979209 is a wasteful number, since it uses less digits than its factorization.

50979209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69799.

The product of its (nonzero) digits is 51030, while the sum is 41.

The square root of 50979209 is about 7139.9726189951. The cubic root of 50979209 is about 370.7925766371.

The spelling of 50979209 in words is "fifty million, nine hundred seventy-nine thousand, two hundred nine".