11555323 has 4 divisors (see below), whose sum is σ = 12444208. Its totient is φ = 10666440.

The previous prime is 11555303. The next prime is 11555329. The reversal of 11555323 is 32355511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32355511 = 4219 ⋅7669.

It is a cyclic number.

It is not a de Polignac number, because 11555323 - 2⁹ = 11554811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11555329) 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 3 ways as a sum of consecutive naturals, for example, 444423 + ... + 444448.

It is an arithmetic number, because the mean of its divisors is an integer number (3111052).

Almost surely, 2^11555323 is an apocalyptic number.

11555323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11555323 is a deficient number, since it is larger than the sum of its proper divisors (888885).

11555323 is an equidigital number, since it uses as much as digits as its factorization.

11555323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888884.

The product of its digits is 2250, while the sum is 25.

The square root of 11555323 is about 3399.3121363005. The cubic root of 11555323 is about 226.0792462323.

The spelling of 11555323 in words is "eleven million, five hundred fifty-five thousand, three hundred twenty-three".