11565085 has 8 divisors (see below), whose sum is σ = 15860736. Its totient is φ = 7930320.

The previous prime is 11565079. The next prime is 11565089. The reversal of 11565085 is 58056511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11565085 - 2¹⁹ = 11040797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11565089) 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 7 ways as a sum of consecutive naturals, for example, 165181 + ... + 165250.

It is an arithmetic number, because the mean of its divisors is an integer number (1982592).

Almost surely, 2^11565085 is an apocalyptic number.

It is an amenable number.

11565085 is a deficient number, since it is larger than the sum of its proper divisors (4295651).

11565085 is an equidigital number, since it uses as much as digits as its factorization.

11565085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330443.

The product of its (nonzero) digits is 6000, while the sum is 31.

The square root of 11565085 is about 3400.7477119010. The cubic root of 11565085 is about 226.1428926402.

It can be divided in two parts, 1156 and 5085, that added together give a square (6241 = 79²).

The spelling of 11565085 in words is "eleven million, five hundred sixty-five thousand, eighty-five".