50975209 has 2 divisors, whose sum is σ = 50975210. Its totient is φ = 50975208.

The previous prime is 50975207. The next prime is 50975219. The reversal of 50975209 is 90257905.

50975209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41538025 + 9437184 = 6445^2 + 3072^2 .

It is a cyclic number.

It is not a de Polignac number, because 50975209 - 2¹ = 50975207 is a prime.

Together with 50975207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (50975203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25487604 + 25487605.

It is an arithmetic number, because the mean of its divisors is an integer number (25487605).

Almost surely, 2^50975209 is an apocalyptic number.

It is an amenable number.

50975209 is a deficient number, since it is larger than the sum of its proper divisors (1).

50975209 is an equidigital number, since it uses as much as digits as its factorization.

50975209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 50975209 is about 7139.6925003812. The cubic root of 50975209 is about 370.7828785063.

The spelling of 50975209 in words is "fifty million, nine hundred seventy-five thousand, two hundred nine".