12807055 has 4 divisors (see below), whose sum is σ = 15368472. Its totient is φ = 10245640.

The previous prime is 12807049. The next prime is 12807089. The reversal of 12807055 is 55070821.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12807055 - 2¹¹ = 12805007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1280701 + ... + 1280710.

It is an arithmetic number, because the mean of its divisors is an integer number (3842118).

Almost surely, 2^12807055 is an apocalyptic number.

12807055 is a deficient number, since it is larger than the sum of its proper divisors (2561417).

12807055 is an equidigital number, since it uses as much as digits as its factorization.

12807055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561416.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 12807055 is about 3578.6945944017. The cubic root of 12807055 is about 233.9643881326.

Adding to 12807055 its reverse (55070821), we get a palindrome (67877876).

The spelling of 12807055 in words is "twelve million, eight hundred seven thousand, fifty-five".