5605105591 has 2 divisors, whose sum is σ = 5605105592. Its totient is φ = 5605105590.

The previous prime is 5605105511. The next prime is 5605105601. The reversal of 5605105591 is 1955015065.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5605105591 - 2¹⁹ = 5604581303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5605105591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5605105501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2802552795 + 2802552796.

It is an arithmetic number, because the mean of its divisors is an integer number (2802552796).

Almost surely, 2^5605105591 is an apocalyptic number.

5605105591 is a deficient number, since it is larger than the sum of its proper divisors (1).

5605105591 is an equidigital number, since it uses as much as digits as its factorization.

5605105591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33750, while the sum is 37.

The square root of 5605105591 is about 74867.2531284540. The cubic root of 5605105591 is about 1776.3475151157.

The spelling of 5605105591 in words is "five billion, six hundred five million, one hundred five thousand, five hundred ninety-one".