11681055 has 24 divisors (see below), whose sum is σ = 20947680. Its totient is φ = 6014400.

The previous prime is 11681053. The next prime is 11681063. The reversal of 11681055 is 55018611.

11681055 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11681055 - 2¹ = 11681053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11681053) 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, 3171 + ... + 5780.

It is an arithmetic number, because the mean of its divisors is an integer number (872820).

Almost surely, 2^11681055 is an apocalyptic number.

11681055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11681055 is a deficient number, since it is larger than the sum of its proper divisors (9266625).

11681055 is a wasteful number, since it uses less digits than its factorization.

11681055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8991 (or 8988 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

The square root of 11681055 is about 3417.7558426547. The cubic root of 11681055 is about 226.8962698907.

Adding to 11681055 its reverse (55018611), we get a palindrome (66699666).

The spelling of 11681055 in words is "eleven million, six hundred eighty-one thousand, fifty-five".