11055203455 has 4 divisors (see below), whose sum is σ = 13266244152. Its totient is φ = 8844162760.

The previous prime is 11055203449. The next prime is 11055203459. The reversal of 11055203455 is 55430255011.

11055203455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55430255011 = 10247 ⋅5409413.

It is not a de Polignac number, because 11055203455 - 2²³ = 11046814847 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11055203459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1105520341 + ... + 1105520350.

It is an arithmetic number, because the mean of its divisors is an integer number (3316561038).

Almost surely, 2^11055203455 is an apocalyptic number.

11055203455 is a deficient number, since it is larger than the sum of its proper divisors (2211040697).

11055203455 is an equidigital number, since it uses as much as digits as its factorization.

11055203455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211040696.

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 11055203455 its reverse (55430255011), we get a palindrome (66485458466).

The spelling of 11055203455 in words is "eleven billion, fifty-five million, two hundred three thousand, four hundred fifty-five".