5000610991 has 2 divisors, whose sum is σ = 5000610992. Its totient is φ = 5000610990.

The previous prime is 5000610973. The next prime is 5000611001. The reversal of 5000610991 is 1990160005.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5000610991 - 2⁵ = 5000610959 is a prime.

It is a super-2 number, since 2×5000610991² = 50012220566620004162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5000610971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500305495 + 2500305496.

It is an arithmetic number, because the mean of its divisors is an integer number (2500305496).

Almost surely, 2^5000610991 is an apocalyptic number.

5000610991 is a deficient number, since it is larger than the sum of its proper divisors (1).

5000610991 is an equidigital number, since it uses as much as digits as its factorization.

5000610991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 5000610991 is about 70714.9983454712. The cubic root of 5000610991 is about 1710.0455958340.

Adding to 5000610991 its reverse (1990160005), we get a palindrome (6990770996).

The spelling of 5000610991 in words is "five billion, six hundred ten thousand, nine hundred ninety-one".