50442143 has 4 divisors (see below), whose sum is σ = 50751768. Its totient is φ = 50132520.

The previous prime is 50442121. The next prime is 50442149. The reversal of 50442143 is 34124405.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50442143 - 2⁶ = 50442079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50442149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154568 + ... + 154893.

It is an arithmetic number, because the mean of its divisors is an integer number (12687942).

Almost surely, 2^50442143 is an apocalyptic number.

50442143 is a deficient number, since it is larger than the sum of its proper divisors (309625).

50442143 is a wasteful number, since it uses less digits than its factorization.

50442143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309624.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 50442143 is about 7102.2632308300. The cubic root of 50442143 is about 369.4858771320.

Adding to 50442143 its reverse (34124405), we get a palindrome (84566548).

The spelling of 50442143 in words is "fifty million, four hundred forty-two thousand, one hundred forty-three".