50840181 has 24 divisors (see below), whose sum is σ = 88345920. Its totient is φ = 27521856.

The previous prime is 50840171. The next prime is 50840221. The reversal of 50840181 is 18104805.

50840181 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 50840181 - 2¹⁸ = 50578037 is a prime.

It is a super-2 number, since 2×50840181² = 5169448008225522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50840131) 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 23 ways as a sum of consecutive naturals, for example, 20040 + ... + 22433.

It is an arithmetic number, because the mean of its divisors is an integer number (3681080).

Almost surely, 2^50840181 is an apocalyptic number.

It is an amenable number.

50840181 is a deficient number, since it is larger than the sum of its proper divisors (37505739).

50840181 is a wasteful number, since it uses less digits than its factorization.

50840181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42505 (or 42502 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 50840181 is about 7130.2300804392. The cubic root of 50840181 is about 370.4552006458.

Adding to 50840181 its reverse (18104805), we get a palindrome (68944986).

The spelling of 50840181 in words is "fifty million, eight hundred forty thousand, one hundred eighty-one".