50125031181 has 6 divisors (see below), whose sum is σ = 72402822830. Its totient is φ = 33416687448.

The previous prime is 50125031149. The next prime is 50125031183. The reversal of 50125031181 is 18113052105.

50125031181 is a `hidden beast` number, since 501 + 2 + 50 + 31 + 1 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25877869956 + 24247161225 = 160866^2 + 155715^2 .

It is not a de Polignac number, because 50125031181 - 2⁵ = 50125031149 is a prime.

It is a super-2 number, since 2×50125031181² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50125031183) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2784723946 + ... + 2784723963.

Almost surely, 2^50125031181 is an apocalyptic number.

It is an amenable number.

50125031181 is a deficient number, since it is larger than the sum of its proper divisors (22277791649).

50125031181 is a wasteful number, since it uses less digits than its factorization.

50125031181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5569447915 (or 5569447912 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

Adding to 50125031181 its reverse (18113052105), we get a palindrome (68238083286).

The spelling of 50125031181 in words is "fifty billion, one hundred twenty-five million, thirty-one thousand, one hundred eighty-one".