27056321 has 2 divisors, whose sum is σ = 27056322. Its totient is φ = 27056320.

The previous prime is 27056317. The next prime is 27056329. The reversal of 27056321 is 12365072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21715600 + 5340721 = 4660^2 + 2311^2 .

It is a cyclic number.

It is not a de Polignac number, because 27056321 - 2² = 27056317 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (27056329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13528160 + 13528161.

It is an arithmetic number, because the mean of its divisors is an integer number (13528161).

Almost surely, 2^27056321 is an apocalyptic number.

It is an amenable number.

27056321 is a deficient number, since it is larger than the sum of its proper divisors (1).

27056321 is an equidigital number, since it uses as much as digits as its factorization.

27056321 is an evil number, because the sum of its binary digits is even.

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

The square root of 27056321 is about 5201.5690901881. The cubic root of 27056321 is about 300.2084514228.

The spelling of 27056321 in words is "twenty-seven million, fifty-six thousand, three hundred twenty-one".