5000499991 has 2 divisors, whose sum is σ = 5000499992. Its totient is φ = 5000499990.

The previous prime is 5000499961. The next prime is 5000500007. The reversal of 5000499991 is 1999940005.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5000499991 - 2²¹ = 4998402839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5000499961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500249995 + 2500249996.

It is an arithmetic number, because the mean of its divisors is an integer number (2500249996).

Almost surely, 2^5000499991 is an apocalyptic number.

5000499991 is a deficient number, since it is larger than the sum of its proper divisors (1).

5000499991 is an equidigital number, since it uses as much as digits as its factorization.

5000499991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131220, while the sum is 46.

The square root of 5000499991 is about 70714.2135005403. The cubic root of 5000499991 is about 1710.0329429491.

The spelling of 5000499991 in words is "five billion, four hundred ninety-nine thousand, nine hundred ninety-one".