50143261 has 12 divisors (see below), whose sum is σ = 60484512. Its totient is φ = 40715784.

The previous prime is 50143259. The next prime is 50143271. The reversal of 50143261 is 16234105.

50143261 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 50143261 - 2¹ = 50143259 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 (50143271) 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 11 ways as a sum of consecutive naturals, for example, 7395 + ... + 12448.

It is an arithmetic number, because the mean of its divisors is an integer number (5040376).

Almost surely, 2^50143261 is an apocalyptic number.

It is an amenable number.

50143261 is a deficient number, since it is larger than the sum of its proper divisors (10341251).

50143261 is a wasteful number, since it uses less digits than its factorization.

50143261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19888 (or 19869 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 50143261 is about 7081.1906484715. The cubic root of 50143261 is about 368.7546663778.

Adding to 50143261 its reverse (16234105), we get a palindrome (66377366).

The spelling of 50143261 in words is "fifty million, one hundred forty-three thousand, two hundred sixty-one".