50005551110991 has 8 divisors (see below), whose sum is σ = 76198935026304. Its totient is φ = 28574600634840.

The previous prime is 50005551110927. The next prime is 50005551111017. The reversal of 50005551110991 is 19901115550005.

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

It is not a de Polignac number, because 50005551110991 - 2⁶ = 50005551110927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50005551110191) 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, 1190608359765 + ... + 1190608359806.

It is an arithmetic number, because the mean of its divisors is an integer number (9524866878288).

Almost surely, 2^{50005551110991} is an apocalyptic number.

50005551110991 is a deficient number, since it is larger than the sum of its proper divisors (26193383915313).

50005551110991 is a wasteful number, since it uses less digits than its factorization.

50005551110991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381216719581.

The product of its (nonzero) digits is 50625, while the sum is 42.

Adding to 50005551110991 its reverse (19901115550005), we get a palindrome (69906666660996).

The spelling of 50005551110991 in words is "fifty trillion, five billion, five hundred fifty-one million, one hundred ten thousand, nine hundred ninety-one".