27006506 has 16 divisors (see below), whose sum is σ = 43038216. Its totient is φ = 12665856.

The previous prime is 27006461. The next prime is 27006509. The reversal of 27006506 is 60560072.

It can be written as a sum of positive squares in 4 ways, for example, as 19936225 + 7070281 = 4465^2 + 2659^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27006509) 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 7 ways as a sum of consecutive naturals, for example, 10280 + ... + 12636.

Almost surely, 2^27006506 is an apocalyptic number.

27006506 is a deficient number, since it is larger than the sum of its proper divisors (16031710).

27006506 is a wasteful number, since it uses less digits than its factorization.

27006506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 27006506 is about 5196.7784251399. The cubic root of 27006506 is about 300.0240943611.

Adding to 27006506 its reverse (60560072), we get a palindrome (87566578).

The spelling of 27006506 in words is "twenty-seven million, six thousand, five hundred six".