11328555 has 24 divisors (see below), whose sum is σ = 21086352. Its totient is φ = 5178432.

The previous prime is 11328539. The next prime is 11328557. The reversal of 11328555 is 55582311.

It is not a de Polignac number, because 11328555 - 2⁴ = 11328539 is a prime.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (11328557) 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 23 ways as a sum of consecutive naturals, for example, 6972 + ... + 8441.

It is an arithmetic number, because the mean of its divisors is an integer number (878598).

Almost surely, 2^11328555 is an apocalyptic number.

11328555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11328555 is a deficient number, since it is larger than the sum of its proper divisors (9757797).

11328555 is a wasteful number, since it uses less digits than its factorization.

11328555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15435 (or 15428 counting only the distinct ones).

The product of its digits is 6000, while the sum is 30.

The square root of 11328555 is about 3365.7918830492. The cubic root of 11328555 is about 224.5905640370.

The spelling of 11328555 in words is "eleven million, three hundred twenty-eight thousand, five hundred fifty-five".