50543509 has 2 divisors, whose sum is σ = 50543510. Its totient is φ = 50543508.

The previous prime is 50543497. The next prime is 50543513. The reversal of 50543509 is 90534505.

50543509 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 can be written as a sum of positive squares in only one way, i.e., 48302500 + 2241009 = 6950^2 + 1497^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50543509 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50543539) 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, 25271754 + 25271755.

It is an arithmetic number, because the mean of its divisors is an integer number (25271755).

Almost surely, 2^50543509 is an apocalyptic number.

It is an amenable number.

50543509 is a deficient number, since it is larger than the sum of its proper divisors (1).

50543509 is an equidigital number, since it uses as much as digits as its factorization.

50543509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 50543509 is about 7109.3958252442. The cubic root of 50543509 is about 369.7332116231.

The spelling of 50543509 in words is "fifty million, five hundred forty-three thousand, five hundred nine".