12655775 has 12 divisors (see below), whose sum is σ = 17120184. Its totient is φ = 9204000.

The previous prime is 12655771. The next prime is 12655777. The reversal of 12655775 is 57755621.

12655775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12655775 - 2² = 12655771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12655771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22736 + ... + 23285.

It is an arithmetic number, because the mean of its divisors is an integer number (1426682).

Almost surely, 2^12655775 is an apocalyptic number.

12655775 is a deficient number, since it is larger than the sum of its proper divisors (4464409).

12655775 is a wasteful number, since it uses less digits than its factorization.

12655775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46042 (or 46037 counting only the distinct ones).

The product of its digits is 73500, while the sum is 38.

The square root of 12655775 is about 3557.4956078680. The cubic root of 12655775 is about 233.0395224820.

The spelling of 12655775 in words is "twelve million, six hundred fifty-five thousand, seven hundred seventy-five".