50000191 has 8 divisors (see below), whose sum is σ = 52758000. Its totient is φ = 47255040.

The previous prime is 50000161. The next prime is 50000201. The reversal of 50000191 is 19100005.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50000191 - 2⁷ = 50000063 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 (50000101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5601 + ... + 11461.

It is an arithmetic number, because the mean of its divisors is an integer number (6594750).

Almost surely, 2^50000191 is an apocalyptic number.

50000191 is a deficient number, since it is larger than the sum of its proper divisors (2757809).

50000191 is a wasteful number, since it uses less digits than its factorization.

50000191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6329.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 50000191 is about 7071.0813175921. The cubic root of 50000191 is about 368.4036189635.

Adding to 50000191 its reverse (19100005), we get a palindrome (69100196).

The spelling of 50000191 in words is "fifty million, one hundred ninety-one", and thus it is an aban number.