27508081 has 2 divisors, whose sum is σ = 27508082. Its totient is φ = 27508080.

The previous prime is 27508051. The next prime is 27508157. The reversal of 27508081 is 18080572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27468081 + 40000 = 5241^2 + 200^2 .

It is a cyclic number.

It is not a de Polignac number, because 27508081 - 2⁵ = 27508049 is a prime.

It is a super-2 number, since 2×27508081² = 1513389040605122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27508001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13754040 + 13754041.

It is an arithmetic number, because the mean of its divisors is an integer number (13754041).

Almost surely, 2^27508081 is an apocalyptic number.

It is an amenable number.

27508081 is a deficient number, since it is larger than the sum of its proper divisors (1).

27508081 is an equidigital number, since it uses as much as digits as its factorization.

27508081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 27508081 is about 5244.8146773742. The cubic root of 27508081 is about 301.8700996823.

The spelling of 27508081 in words is "twenty-seven million, five hundred eight thousand, eighty-one".