27020549 has 2 divisors, whose sum is σ = 27020550. Its totient is φ = 27020548.

The previous prime is 27020533. The next prime is 27020551. The reversal of 27020549 is 94502072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18062500 + 8958049 = 4250^2 + 2993^2 .

It is a cyclic number.

It is not a de Polignac number, because 27020549 - 2⁴ = 27020533 is a prime.

It is a super-2 number, since 2×27020549² = 1460220136522802, which contains 22 as substring.

Together with 27020551, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27020509) 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 as a sum of consecutive naturals, namely, 13510274 + 13510275.

It is an arithmetic number, because the mean of its divisors is an integer number (13510275).

Almost surely, 2^27020549 is an apocalyptic number.

It is an amenable number.

27020549 is a deficient number, since it is larger than the sum of its proper divisors (1).

27020549 is an equidigital number, since it uses as much as digits as its factorization.

27020549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 27020549 is about 5198.1293750733. The cubic root of 27020549 is about 300.0760881078.

The spelling of 27020549 in words is "twenty-seven million, twenty thousand, five hundred forty-nine".