2205505 has 4 divisors (see below), whose sum is σ = 2646612. Its totient is φ = 1764400.

The previous prime is 2205503. The next prime is 2205521. The reversal of 2205505 is 5055022.

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 876096 + 1329409 = 936^2 + 1153^2 .

It is not a de Polignac number, because 2205505 - 2¹ = 2205503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2205503) 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, 220546 + ... + 220555.

It is an arithmetic number, because the mean of its divisors is an integer number (661653).

2^2205505 is an apocalyptic number.

It is an amenable number.

2205505 is a deficient number, since it is larger than the sum of its proper divisors (441107).

2205505 is an equidigital number, since it uses as much as digits as its factorization.

2205505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441106.

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 2205505 is about 1485.0942731019. The cubic root of 2205505 is about 130.1675354778.

The spelling of 2205505 in words is "two million, two hundred five thousand, five hundred five".