12775455 has 64 divisors (see below), whose sum is σ = 28339200. Its totient is φ = 5304960.

The previous prime is 12775421. The next prime is 12775463. The reversal of 12775455 is 55457721.

12775455 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 12775455 - 2⁸ = 12775199 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9781 + ... + 11009.

It is an arithmetic number, because the mean of its divisors is an integer number (442800).

Almost surely, 2^12775455 is an apocalyptic number.

12775455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12775455 is an abundant number, since it is smaller than the sum of its proper divisors (15563745).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12775455 is a wasteful number, since it uses less digits than its factorization.

12775455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261 (or 1255 counting only the distinct ones).

The product of its digits is 49000, while the sum is 36.

The square root of 12775455 is about 3574.2768499376. The cubic root of 12775455 is about 233.7718025171.

The spelling of 12775455 in words is "twelve million, seven hundred seventy-five thousand, four hundred fifty-five".