50391787 has 2 divisors, whose sum is σ = 50391788. Its totient is φ = 50391786.

The previous prime is 50391773. The next prime is 50391793. The reversal of 50391787 is 78719305.

50391787 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 50391787 - 2¹¹ = 50389739 is a prime.

It is not a weakly prime, because it can be changed into another prime (50391727) 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, 25195893 + 25195894.

It is an arithmetic number, because the mean of its divisors is an integer number (25195894).

Almost surely, 2^50391787 is an apocalyptic number.

50391787 is a deficient number, since it is larger than the sum of its proper divisors (1).

50391787 is an equidigital number, since it uses as much as digits as its factorization.

50391787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 50391787 is about 7098.7172784948. The cubic root of 50391787 is about 369.3628845673.

The spelling of 50391787 in words is "fifty million, three hundred ninety-one thousand, seven hundred eighty-seven".