2205610591 has 4 divisors (see below), whose sum is σ = 2213404552. Its totient is φ = 2197816632.

The previous prime is 2205610571. The next prime is 2205610601. The reversal of 2205610591 is 1950165022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2205610591 - 2¹⁵ = 2205577823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205610571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3896556 + ... + 3897121.

It is an arithmetic number, because the mean of its divisors is an integer number (553351138).

Almost surely, 2^2205610591 is an apocalyptic number.

2205610591 is a deficient number, since it is larger than the sum of its proper divisors (7793961).

2205610591 is an equidigital number, since it uses as much as digits as its factorization.

2205610591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7793960.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 2205610591 is about 46963.9286154811. The cubic root of 2205610591 is about 1301.6961274973.

The spelling of 2205610591 in words is "two billion, two hundred five million, six hundred ten thousand, five hundred ninety-one".