11018855 has 4 divisors (see below), whose sum is σ = 13222632. Its totient is φ = 8815080.

The previous prime is 11018849. The next prime is 11018867. The reversal of 11018855 is 55881011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55881011 = 683 ⋅81817.

It is a de Polignac number, because none of the positive numbers 2^k-11018855 is a prime.

It is a super-2 number, since 2×11018855² = 242830331022050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1101881 + ... + 1101890.

It is an arithmetic number, because the mean of its divisors is an integer number (3305658).

Almost surely, 2^11018855 is an apocalyptic number.

11018855 is a deficient number, since it is larger than the sum of its proper divisors (2203777).

11018855 is an equidigital number, since it uses as much as digits as its factorization.

11018855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203776.

The product of its (nonzero) digits is 1600, while the sum is 29.

The square root of 11018855 is about 3319.4660715242. The cubic root of 11018855 is about 222.5250066579.

Adding to 11018855 its reverse (55881011), we get a palindrome (66899866).

The spelling of 11018855 in words is "eleven million, eighteen thousand, eight hundred fifty-five".