50401143 has 16 divisors (see below), whose sum is σ = 80412640. Its totient is φ = 31015872.

The previous prime is 50401123. The next prime is 50401147. The reversal of 50401143 is 34110405.

It is a happy number.

50401143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 50401143 - 2¹² = 50397047 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 (50401147) 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 in 15 ways as a sum of consecutive naturals, for example, 71446 + ... + 72147.

It is an arithmetic number, because the mean of its divisors is an integer number (5025790).

Almost surely, 2^50401143 is an apocalyptic number.

50401143 is a deficient number, since it is larger than the sum of its proper divisors (30011497).

50401143 is a wasteful number, since it uses less digits than its factorization.

50401143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143615 (or 143609 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 50401143 is about 7099.3762402059. The cubic root of 50401143 is about 369.3857424277.

Adding to 50401143 its reverse (34110405), we get a palindrome (84511548).

The spelling of 50401143 in words is "fifty million, four hundred one thousand, one hundred forty-three".