27055643 has 8 divisors (see below), whose sum is σ = 27852528. Its totient is φ = 26266464.

The previous prime is 27055631. The next prime is 27055657. The reversal of 27055643 is 34655072.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27055643 - 2⁴ = 27055627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27055543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5621 + ... + 9257.

It is an arithmetic number, because the mean of its divisors is an integer number (3481566).

Almost surely, 2^27055643 is an apocalyptic number.

27055643 is a deficient number, since it is larger than the sum of its proper divisors (796885).

27055643 is a wasteful number, since it uses less digits than its factorization.

27055643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3853.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 27055643 is about 5201.5039171378. The cubic root of 27055643 is about 300.2059437767.

The spelling of 27055643 in words is "twenty-seven million, fifty-five thousand, six hundred forty-three".