27755459 has 2 divisors, whose sum is σ = 27755460. Its totient is φ = 27755458.

The previous prime is 27755423. The next prime is 27755471. The reversal of 27755459 is 95455772.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27755459 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (27755419) 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, 13877729 + 13877730.

It is an arithmetic number, because the mean of its divisors is an integer number (13877730).

Almost surely, 2^27755459 is an apocalyptic number.

27755459 is a deficient number, since it is larger than the sum of its proper divisors (1).

27755459 is an equidigital number, since it uses as much as digits as its factorization.

27755459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 441000, while the sum is 44.

The square root of 27755459 is about 5268.3449962963. The cubic root of 27755459 is about 302.7722985838.

The spelling of 27755459 in words is "twenty-seven million, seven hundred fifty-five thousand, four hundred fifty-nine".