11555383 has 4 divisors (see below), whose sum is σ = 13206160. Its totient is φ = 9904608.

The previous prime is 11555377. The next prime is 11555387. The reversal of 11555383 is 38355511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38355511 = 5449 ⋅7039.

It is a de Polignac number, because none of the positive numbers 2^k-11555383 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 (11555387) 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, 825378 + ... + 825391.

It is an arithmetic number, because the mean of its divisors is an integer number (3301540).

Almost surely, 2^11555383 is an apocalyptic number.

11555383 is a deficient number, since it is larger than the sum of its proper divisors (1650777).

11555383 is an equidigital number, since it uses as much as digits as its factorization.

11555383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650776.

The product of its digits is 9000, while the sum is 31.

The square root of 11555383 is about 3399.3209616039. The cubic root of 11555383 is about 226.0796375305.

The spelling of 11555383 in words is "eleven million, five hundred fifty-five thousand, three hundred eighty-three".