27006565 has 4 divisors (see below), whose sum is σ = 32407884. Its totient is φ = 21605248.

The previous prime is 27006563. The next prime is 27006583. The reversal of 27006565 is 56560072.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13771521 + 13235044 = 3711^2 + 3638^2 .

It is a cyclic number.

It is not a de Polignac number, because 27006565 - 2¹ = 27006563 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 (27006563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2700652 + ... + 2700661.

It is an arithmetic number, because the mean of its divisors is an integer number (8101971).

Almost surely, 2^27006565 is an apocalyptic number.

It is an amenable number.

27006565 is a deficient number, since it is larger than the sum of its proper divisors (5401319).

27006565 is an equidigital number, since it uses as much as digits as its factorization.

27006565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5401318.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 27006565 is about 5196.7841017306. The cubic root of 27006565 is about 300.0243128444.

The spelling of 27006565 in words is "twenty-seven million, six thousand, five hundred sixty-five".