11080505 has 4 divisors (see below), whose sum is σ = 13296612. Its totient is φ = 8864400.

The previous prime is 11080499. The next prime is 11080507. The reversal of 11080505 is 50508011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50508011 = 229 ⋅220559.

It can be written as a sum of positive squares in 2 ways, for example, as 2849344 + 8231161 = 1688^2 + 2869^2 .

It is not a de Polignac number, because 11080505 - 2¹⁸ = 10818361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11080507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1108046 + ... + 1108055.

It is an arithmetic number, because the mean of its divisors is an integer number (3324153).

Almost surely, 2^11080505 is an apocalyptic number.

It is an amenable number.

11080505 is a deficient number, since it is larger than the sum of its proper divisors (2216107).

11080505 is an equidigital number, since it uses as much as digits as its factorization.

11080505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216106.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 11080505 is about 3328.7392508276. The cubic root of 11080505 is about 222.9392408889.

Adding to 11080505 its reverse (50508011), we get a palindrome (61588516).

The spelling of 11080505 in words is "eleven million, eighty thousand, five hundred five".