27010561 has 2 divisors, whose sum is σ = 27010562. Its totient is φ = 27010560.

The previous prime is 27010541. The next prime is 27010573. The reversal of 27010561 is 16501072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18490000 + 8520561 = 4300^2 + 2919^2 .

It is a cyclic number.

It is not a de Polignac number, because 27010561 - 2¹³ = 27002369 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (27010541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13505280 + 13505281.

It is an arithmetic number, because the mean of its divisors is an integer number (13505281).

Almost surely, 2^27010561 is an apocalyptic number.

It is an amenable number.

27010561 is a deficient number, since it is larger than the sum of its proper divisors (1).

27010561 is an equidigital number, since it uses as much as digits as its factorization.

27010561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 27010561 is about 5197.1685560505. The cubic root of 27010561 is about 300.0391097160.

The spelling of 27010561 in words is "twenty-seven million, ten thousand, five hundred sixty-one".