50543143109 has 2 divisors, whose sum is σ = 50543143110. Its totient is φ = 50543143108.

The previous prime is 50543143097. The next prime is 50543143117. The reversal of 50543143109 is 90134134505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50398903009 + 144240100 = 224497^2 + 12010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50543143109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50543143129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25271571554 + 25271571555.

It is an arithmetic number, because the mean of its divisors is an integer number (25271571555).

Almost surely, 2^50543143109 is an apocalyptic number.

It is an amenable number.

50543143109 is a deficient number, since it is larger than the sum of its proper divisors (1).

50543143109 is an equidigital number, since it uses as much as digits as its factorization.

50543143109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 50543143109 in words is "fifty billion, five hundred forty-three million, one hundred forty-three thousand, one hundred nine".