5009591 has 2 divisors, whose sum is σ = 5009592. Its totient is φ = 5009590.

The previous prime is 5009581. The next prime is 5009593. The reversal of 5009591 is 1959005.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5009591 - 2⁶ = 5009527 is a prime.

Together with 5009593, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5009593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2504795 + 2504796.

It is an arithmetic number, because the mean of its divisors is an integer number (2504796).

Almost surely, 2^5009591 is an apocalyptic number.

5009591 is a deficient number, since it is larger than the sum of its proper divisors (1).

5009591 is an equidigital number, since it uses as much as digits as its factorization.

5009591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2025, while the sum is 29.

The square root of 5009591 is about 2238.2115628331. The cubic root of 5009591 is about 171.1068606948.

The spelling of 5009591 in words is "five million, nine thousand, five hundred ninety-one".