11644055 has 12 divisors (see below), whose sum is σ = 14749272. Its totient is φ = 8823600.

The previous prime is 11644043. The next prime is 11644067. The reversal of 11644055 is 55044611.

It is an interprime number because it is at equal distance from previous prime (11644043) and next prime (11644067).

It is not a de Polignac number, because 11644055 - 2⁶ = 11643991 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 11 ways as a sum of consecutive naturals, for example, 1421 + ... + 5030.

It is an arithmetic number, because the mean of its divisors is an integer number (1229106).

Almost surely, 2^11644055 is an apocalyptic number.

11644055 is a deficient number, since it is larger than the sum of its proper divisors (3105217).

11644055 is an equidigital number, since it uses as much as digits as its factorization.

11644055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6494 (or 6475 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 11644055 is about 3412.3386408737. The cubic root of 11644055 is about 226.6564501835.

Adding to 11644055 its reverse (55044611), we get a palindrome (66688666).

The spelling of 11644055 in words is "eleven million, six hundred forty-four thousand, fifty-five".