11715585 has 16 divisors (see below), whose sum is σ = 21422976. Its totient is φ = 5355648.

The previous prime is 11715577. The next prime is 11715589. The reversal of 11715585 is 58551711.

11715585 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11715585 - 2³ = 11715577 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11715589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55684 + ... + 55893.

It is an arithmetic number, because the mean of its divisors is an integer number (1338936).

Almost surely, 2^11715585 is an apocalyptic number.

11715585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11715585 is a deficient number, since it is larger than the sum of its proper divisors (9707391).

11715585 is a wasteful number, since it uses less digits than its factorization.

11715585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111592.

The product of its digits is 7000, while the sum is 33.

The square root of 11715585 is about 3422.8036753515. The cubic root of 11715585 is about 227.1196235991.

The spelling of 11715585 in words is "eleven million, seven hundred fifteen thousand, five hundred eighty-five".