27090551 has 2 divisors, whose sum is σ = 27090552. Its totient is φ = 27090550.

The previous prime is 27090529. The next prime is 27090563. The reversal of 27090551 is 15509072.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27090551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27090851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13545275 + 13545276.

It is an arithmetic number, because the mean of its divisors is an integer number (13545276).

Almost surely, 2^27090551 is an apocalyptic number.

27090551 is a deficient number, since it is larger than the sum of its proper divisors (1).

27090551 is an equidigital number, since it uses as much as digits as its factorization.

27090551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 27090551 is about 5204.8584034535. The cubic root of 27090551 is about 300.3349998518.

The spelling of 27090551 in words is "twenty-seven million, ninety thousand, five hundred fifty-one".