50045991 has 8 divisors (see below), whose sum is σ = 66785280. Its totient is φ = 33335352.

The previous prime is 50045987. The next prime is 50046013. The reversal of 50045991 is 19954005.

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

It is not a de Polignac number, because 50045991 - 2² = 50045987 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50045921) 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, 2685 + ... + 10358.

It is an arithmetic number, because the mean of its divisors is an integer number (8348160).

Almost surely, 2^50045991 is an apocalyptic number.

50045991 is a deficient number, since it is larger than the sum of its proper divisors (16739289).

50045991 is a wasteful number, since it uses less digits than its factorization.

50045991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14325.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 50045991 is about 7074.3191191803. The cubic root of 50045991 is about 368.5160701108.

Adding to 50045991 its reverse (19954005), we get a palindrome (69999996).

The spelling of 50045991 in words is "fifty million, forty-five thousand, nine hundred ninety-one".