12655755 has 24 divisors (see below), whose sum is σ = 25071072. Its totient is φ = 5785344.

The previous prime is 12655751. The next prime is 12655759. The reversal of 12655755 is 55755621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12655751) and next prime (12655759).

It is not a de Polignac number, because 12655755 - 2² = 12655751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12655751) 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, 19774 + ... + 20403.

It is an arithmetic number, because the mean of its divisors is an integer number (1044628).

Almost surely, 2^12655755 is an apocalyptic number.

12655755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12655755 is a deficient number, since it is larger than the sum of its proper divisors (12415317).

12655755 is a wasteful number, since it uses less digits than its factorization.

12655755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40195 (or 40192 counting only the distinct ones).

The product of its digits is 52500, while the sum is 36.

The square root of 12655755 is about 3557.4927969006. The cubic root of 12655755 is about 233.0393997240.

The spelling of 12655755 in words is "twelve million, six hundred fifty-five thousand, seven hundred fifty-five".