11042585 has 4 divisors (see below), whose sum is σ = 13251108. Its totient is φ = 8834064.

The previous prime is 11042573. The next prime is 11042587. The reversal of 11042585 is 58524011.

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 3924361 + 7118224 = 1981^2 + 2668^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11042585 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11042587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1104254 + ... + 1104263.

It is an arithmetic number, because the mean of its divisors is an integer number (3312777).

Almost surely, 2^11042585 is an apocalyptic number.

It is an amenable number.

11042585 is a deficient number, since it is larger than the sum of its proper divisors (2208523).

11042585 is an equidigital number, since it uses as much as digits as its factorization.

11042585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208522.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 11042585 is about 3323.0385191869. The cubic root of 11042585 is about 222.6846340197.

Adding to 11042585 its reverse (58524011), we get a palindrome (69566596).

The spelling of 11042585 in words is "eleven million, forty-two thousand, five hundred eighty-five".