50819689 has 2 divisors, whose sum is σ = 50819690. Its totient is φ = 50819688.

The previous prime is 50819683. The next prime is 50819707. The reversal of 50819689 is 98691805.

50819689 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., 38688400 + 12131289 = 6220^2 + 3483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50819689 is a prime.

It is not a weakly prime, because it can be changed into another prime (50819683) 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, 25409844 + 25409845.

It is an arithmetic number, because the mean of its divisors is an integer number (25409845).

Almost surely, 2^50819689 is an apocalyptic number.

It is an amenable number.

50819689 is a deficient number, since it is larger than the sum of its proper divisors (1).

50819689 is an equidigital number, since it uses as much as digits as its factorization.

50819689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 50819689 is about 7128.7929553326. The cubic root of 50819689 is about 370.4054211997.

The spelling of 50819689 in words is "fifty million, eight hundred nineteen thousand, six hundred eighty-nine".