50866559 has 2 divisors, whose sum is σ = 50866560. Its totient is φ = 50866558.

The previous prime is 50866537. The next prime is 50866561. The reversal of 50866559 is 95566805.

50866559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50866559 - 2⁸ = 50866303 is a prime.

Together with 50866561, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50866579) 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, 25433279 + 25433280.

It is an arithmetic number, because the mean of its divisors is an integer number (25433280).

Almost surely, 2^50866559 is an apocalyptic number.

50866559 is a deficient number, since it is larger than the sum of its proper divisors (1).

50866559 is an equidigital number, since it uses as much as digits as its factorization.

50866559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 44.

The square root of 50866559 is about 7132.0795705040. The cubic root of 50866559 is about 370.5192587560.

The spelling of 50866559 in words is "fifty million, eight hundred sixty-six thousand, five hundred fifty-nine".