12665055 has 32 divisors (see below), whose sum is σ = 22063104. Its totient is φ = 6166656.

The previous prime is 12665041. The next prime is 12665069. The reversal of 12665055 is 55056621.

It is an interprime number because it is at equal distance from previous prime (12665041) and next prime (12665069).

It is not a de Polignac number, because 12665055 - 2⁶ = 12664991 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20562 + ... + 21168.

It is an arithmetic number, because the mean of its divisors is an integer number (689472).

Almost surely, 2^12665055 is an apocalyptic number.

12665055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12665055 is a deficient number, since it is larger than the sum of its proper divisors (9398049).

12665055 is a wasteful number, since it uses less digits than its factorization.

12665055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 12665055 is about 3558.7996571878. The cubic root of 12665055 is about 233.0964682478.

The spelling of 12665055 in words is "twelve million, six hundred sixty-five thousand, fifty-five".