50318143 has 2 divisors, whose sum is σ = 50318144. Its totient is φ = 50318142.

The previous prime is 50318101. The next prime is 50318159. The reversal of 50318143 is 34181305.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50318143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50318173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25159071 + 25159072.

It is an arithmetic number, because the mean of its divisors is an integer number (25159072).

Almost surely, 2^50318143 is an apocalyptic number.

50318143 is a deficient number, since it is larger than the sum of its proper divisors (1).

50318143 is an equidigital number, since it uses as much as digits as its factorization.

50318143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 50318143 is about 7093.5282476353. The cubic root of 50318143 is about 369.1828643456.

Adding to 50318143 its reverse (34181305), we get a palindrome (84499448).

The spelling of 50318143 in words is "fifty million, three hundred eighteen thousand, one hundred forty-three".