50003133161 has 4 divisors (see below), whose sum is σ = 50003629524. Its totient is φ = 50002636800.

The previous prime is 50003133149. The next prime is 50003133199. The reversal of 50003133161 is 16133130005.

It is a happy number.

50003133161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 39221425936 + 10781707225 = 198044^2 + 103835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50003133161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50003333161) 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, 37400 + ... + 318441.

It is an arithmetic number, because the mean of its divisors is an integer number (12500907381).

Almost surely, 2^50003133161 is an apocalyptic number.

It is an amenable number.

50003133161 is a deficient number, since it is larger than the sum of its proper divisors (496363).

50003133161 is a wasteful number, since it uses less digits than its factorization.

50003133161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496362.

The product of its (nonzero) digits is 810, while the sum is 23.

Adding to 50003133161 its reverse (16133130005), we get a palindrome (66136263166).

The spelling of 50003133161 in words is "fifty billion, three million, one hundred thirty-three thousand, one hundred sixty-one".