5050051509991 has 2 divisors, whose sum is σ = 5050051509992. Its totient is φ = 5050051509990.

The previous prime is 5050051509973. The next prime is 5050051510019. The reversal of 5050051509991 is 1999051500505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5050051509991 - 2¹⁷ = 5050051378919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5050051509901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525025754995 + 2525025754996.

It is an arithmetic number, because the mean of its divisors is an integer number (2525025754996).

Almost surely, 2^{5050051509991} is an apocalyptic number.

5050051509991 is a deficient number, since it is larger than the sum of its proper divisors (1).

5050051509991 is an equidigital number, since it uses as much as digits as its factorization.

5050051509991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 455625, while the sum is 49.

The spelling of 5050051509991 in words is "five trillion, fifty billion, fifty-one million, five hundred nine thousand, nine hundred ninety-one".