50943821 has 2 divisors, whose sum is σ = 50943822. Its totient is φ = 50943820.

The previous prime is 50943811. The next prime is 50943833. The reversal of 50943821 is 12834905.

50943821 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., 28238596 + 22705225 = 5314^2 + 4765^2 .

It is a cyclic number.

It is not a de Polignac number, because 50943821 - 2¹⁸ = 50681677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50943811) 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, 25471910 + 25471911.

It is an arithmetic number, because the mean of its divisors is an integer number (25471911).

Almost surely, 2^50943821 is an apocalyptic number.

It is an amenable number.

50943821 is a deficient number, since it is larger than the sum of its proper divisors (1).

50943821 is an equidigital number, since it uses as much as digits as its factorization.

50943821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 50943821 is about 7137.4940280185. The cubic root of 50943821 is about 370.7067596585.

The spelling of 50943821 in words is "fifty million, nine hundred forty-three thousand, eight hundred twenty-one".