11055041505 has 24 divisors (see below), whose sum is σ = 19166889768. Its totient is φ = 5894539776.

The previous prime is 11055041497. The next prime is 11055041507. The reversal of 11055041505 is 50514055011.

11055041505 is a `hidden beast` number, since 1 + 1 + 0 + 5 + 504 + 150 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 267518736 + 10787522769 = 16356^2 + 103863^2 .

It is not a de Polignac number, because 11055041505 - 2³ = 11055041497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11055041507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163539 + ... + 221031.

It is an arithmetic number, because the mean of its divisors is an integer number (798620407).

Almost surely, 2^11055041505 is an apocalyptic number.

11055041505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11055041505 is a deficient number, since it is larger than the sum of its proper divisors (8111848263).

11055041505 is a wasteful number, since it uses less digits than its factorization.

11055041505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61777 (or 61774 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

Adding to 11055041505 its reverse (50514055011), we get a palindrome (61569096516).

The spelling of 11055041505 in words is "eleven billion, fifty-five million, forty-one thousand, five hundred five".