12655577 has 12 divisors (see below), whose sum is σ = 14575536. Its totient is φ = 10896120.

The previous prime is 12655567. The next prime is 12655579. The reversal of 12655577 is 77555621.

12655577 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 12655577 - 2⁴ = 12655561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12655577.

It is not an unprimeable number, because it can be changed into a prime (12655579) 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, 2378 + ... + 5564.

It is an arithmetic number, because the mean of its divisors is an integer number (1214628).

Almost surely, 2^12655577 is an apocalyptic number.

It is an amenable number.

12655577 is a deficient number, since it is larger than the sum of its proper divisors (1919959).

12655577 is a wasteful number, since it uses less digits than its factorization.

12655577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236 (or 3217 counting only the distinct ones).

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

The square root of 12655577 is about 3557.4677791935. The cubic root of 12655577 is about 233.0383071721.

The spelling of 12655577 in words is "twelve million, six hundred fifty-five thousand, five hundred seventy-seven".