27051312 has 80 divisors (see below), whose sum is σ = 73923840. Its totient is φ = 8507136.

The previous prime is 27051281. The next prime is 27051347. The reversal of 27051312 is 21315072.

It is an unprimeable number.

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, 118014 + ... + 118242.

It is an arithmetic number, because the mean of its divisors is an integer number (924048).

Almost surely, 2^27051312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27051312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36961920).

27051312 is an abundant number, since it is smaller than the sum of its proper divisors (46872528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27051312 is a wasteful number, since it uses less digits than its factorization.

27051312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 27051312 is about 5201.0875785743. The cubic root of 27051312 is about 300.1899241818.

Adding to 27051312 its reverse (21315072), we get a palindrome (48366384).

The spelling of 27051312 in words is "twenty-seven million, fifty-one thousand, three hundred twelve".