27755005 has 8 divisors (see below), whose sum is σ = 33345792. Its totient is φ = 22177488.

The previous prime is 27755003. The next prime is 27755009. The reversal of 27755005 is 50055772.

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 27755005 - 2¹ = 27755003 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 (27755003) 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, 2092 + ... + 7738.

It is an arithmetic number, because the mean of its divisors is an integer number (4168224).

Almost surely, 2^27755005 is an apocalyptic number.

It is an amenable number.

27755005 is a deficient number, since it is larger than the sum of its proper divisors (5590787).

27755005 is an equidigital number, since it uses as much as digits as its factorization.

27755005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6635.

The product of its (nonzero) digits is 12250, while the sum is 31.

The square root of 27755005 is about 5268.3019085850. The cubic root of 27755005 is about 302.7706477449.

The spelling of 27755005 in words is "twenty-seven million, seven hundred fifty-five thousand, five".