27755855 has 8 divisors (see below), whose sum is σ = 34081872. Its totient is φ = 21688128.

The previous prime is 27755839. The next prime is 27755857. The reversal of 27755855 is 55855772.

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

It is a cyclic number.

It is not a de Polignac number, because 27755855 - 2⁴ = 27755839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27755857) 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, 64334 + ... + 64763.

It is an arithmetic number, because the mean of its divisors is an integer number (4260234).

Almost surely, 2^27755855 is an apocalyptic number.

27755855 is a deficient number, since it is larger than the sum of its proper divisors (6326017).

27755855 is a wasteful number, since it uses less digits than its factorization.

27755855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129145.

The product of its digits is 490000, while the sum is 44.

The square root of 27755855 is about 5268.3825791224. The cubic root of 27755855 is about 302.7737385078.

The spelling of 27755855 in words is "twenty-seven million, seven hundred fifty-five thousand, eight hundred fifty-five".