27027505 has 16 divisors (see below), whose sum is σ = 33767424. Its totient is φ = 20744640.

The previous prime is 27027503. The next prime is 27027529. The reversal of 27027505 is 50572072.

It is not a de Polignac number, because 27027505 - 2¹ = 27027503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27027503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18999 + ... + 20371.

It is an arithmetic number, because the mean of its divisors is an integer number (2110464).

Almost surely, 2^27027505 is an apocalyptic number.

It is an amenable number.

27027505 is a deficient number, since it is larger than the sum of its proper divisors (6739919).

27027505 is a wasteful number, since it uses less digits than its factorization.

27027505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536.

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 27027505 is about 5198.7984188657. The cubic root of 27027505 is about 300.1018357980.

Adding to 27027505 its reverse (50572072), we get a palindrome (77599577).

The spelling of 27027505 in words is "twenty-seven million, twenty-seven thousand, five hundred five".