11559855 has 8 divisors (see below), whose sum is σ = 18495792. Its totient is φ = 6165248.

The previous prime is 11559853. The next prime is 11559857. The reversal of 11559855 is 55895511.

It is an interprime number because it is at equal distance from previous prime (11559853) and next prime (11559857).

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

It is a cyclic number.

It is not a de Polignac number, because 11559855 - 2¹ = 11559853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11559853) 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 7 ways as a sum of consecutive naturals, for example, 385314 + ... + 385343.

It is an arithmetic number, because the mean of its divisors is an integer number (2311974).

Almost surely, 2^11559855 is an apocalyptic number.

11559855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11559855 is a deficient number, since it is larger than the sum of its proper divisors (6935937).

11559855 is an equidigital number, since it uses as much as digits as its factorization.

11559855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770665.

The product of its digits is 45000, while the sum is 39.

The square root of 11559855 is about 3399.9786764037. The cubic root of 11559855 is about 226.1087984778.

The spelling of 11559855 in words is "eleven million, five hundred fifty-nine thousand, eight hundred fifty-five".