27442057 has 2 divisors, whose sum is σ = 27442058. Its totient is φ = 27442056.

The previous prime is 27442039. The next prime is 27442067. The reversal of 27442057 is 75024472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17272336 + 10169721 = 4156^2 + 3189^2 .

It is a cyclic number.

It is not a de Polignac number, because 27442057 - 2¹⁹ = 26917769 is a prime.

It is not a weakly prime, because it can be changed into another prime (27442067) 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, 13721028 + 13721029.

It is an arithmetic number, because the mean of its divisors is an integer number (13721029).

Almost surely, 2^27442057 is an apocalyptic number.

It is an amenable number.

27442057 is a deficient number, since it is larger than the sum of its proper divisors (1).

27442057 is an equidigital number, since it uses as much as digits as its factorization.

27442057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 27442057 is about 5238.5166793664. The cubic root of 27442057 is about 301.6283932736.

The spelling of 27442057 in words is "twenty-seven million, four hundred forty-two thousand, fifty-seven".