2263605205 has 4 divisors (see below), whose sum is σ = 2716326252. Its totient is φ = 1810884160.

The previous prime is 2263605193. The next prime is 2263605209. The reversal of 2263605205 is 5025063622.

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

It can be written as a sum of positive squares in 2 ways, for example, as 280328049 + 1983277156 = 16743^2 + 44534^2 .

It is not a de Polignac number, because 2263605205 - 2⁷ = 2263605077 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2263605209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226360516 + ... + 226360525.

It is an arithmetic number, because the mean of its divisors is an integer number (679081563).

Almost surely, 2^2263605205 is an apocalyptic number.

It is an amenable number.

2263605205 is a deficient number, since it is larger than the sum of its proper divisors (452721047).

2263605205 is an equidigital number, since it uses as much as digits as its factorization.

2263605205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452721046.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 2263605205 is about 47577.3602147072. The cubic root of 2263605205 is about 1313.0065561563.

Adding to 2263605205 its reverse (5025063622), we get a palindrome (7288668827).

The spelling of 2263605205 in words is "two billion, two hundred sixty-three million, six hundred five thousand, two hundred five".