50097891 has 12 divisors (see below), whose sum is σ = 69025416. Its totient is φ = 32319360.

The previous prime is 50097871. The next prime is 50097893. The reversal of 50097891 is 19879005.

It is a happy number.

It is not a de Polignac number, because 50097891 - 2⁹ = 50097379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50097893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5806 + ... + 11571.

It is an arithmetic number, because the mean of its divisors is an integer number (5752118).

Almost surely, 2^50097891 is an apocalyptic number.

50097891 is a deficient number, since it is larger than the sum of its proper divisors (18927525).

50097891 is a wasteful number, since it uses less digits than its factorization.

50097891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17442 (or 17411 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 50097891 is about 7077.9863661920. The cubic root of 50097891 is about 368.6434154849.

The spelling of 50097891 in words is "fifty million, ninety-seven thousand, eight hundred ninety-one".