11388055 has 16 divisors (see below), whose sum is σ = 15681024. Its totient is φ = 7777440.

The previous prime is 11388043. The next prime is 11388061. The reversal of 11388055 is 55088311.

It is not a de Polignac number, because 11388055 - 2⁵ = 11388023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11094 + ... + 12076.

It is an arithmetic number, because the mean of its divisors is an integer number (980064).

Almost surely, 2^11388055 is an apocalyptic number.

11388055 is a deficient number, since it is larger than the sum of its proper divisors (4292969).

11388055 is an equidigital number, since it uses as much as digits as its factorization.

11388055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326.

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 11388055 is about 3374.6192377808. The cubic root of 11388055 is about 224.9830769165.

The spelling of 11388055 in words is "eleven million, three hundred eighty-eight thousand, fifty-five".