27055657 has 2 divisors, whose sum is σ = 27055658. Its totient is φ = 27055656.

The previous prime is 27055631. The next prime is 27055661. The reversal of 27055657 is 75655072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18870336 + 8185321 = 4344^2 + 2861^2 .

It is a cyclic number.

It is not a de Polignac number, because 27055657 - 2¹⁵ = 27022889 is a prime.

It is not a weakly prime, because it can be changed into another prime (27055627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13527828 + 13527829.

It is an arithmetic number, because the mean of its divisors is an integer number (13527829).

Almost surely, 2^27055657 is an apocalyptic number.

It is an amenable number.

27055657 is a deficient number, since it is larger than the sum of its proper divisors (1).

27055657 is an equidigital number, since it uses as much as digits as its factorization.

27055657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73500, while the sum is 37.

The square root of 27055657 is about 5201.5052629023. The cubic root of 27055657 is about 300.2059955574.

The spelling of 27055657 in words is "twenty-seven million, fifty-five thousand, six hundred fifty-seven".