27240527 has 2 divisors, whose sum is σ = 27240528. Its totient is φ = 27240526.

The previous prime is 27240469. The next prime is 27240529. The reversal of 27240527 is 72504272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27240527 - 2¹⁰ = 27239503 is a prime.

It is a super-2 number, since 2×27240527² = 1484092622475458, which contains 22 as substring.

Together with 27240529, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_1697132 and since 27240527 and 1697132 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27240527.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27240529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13620263 + 13620264.

It is an arithmetic number, because the mean of its divisors is an integer number (13620264).

Almost surely, 2^27240527 is an apocalyptic number.

27240527 is a deficient number, since it is larger than the sum of its proper divisors (1).

27240527 is an equidigital number, since it uses as much as digits as its factorization.

27240527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 27240527 is about 5219.2458267455. The cubic root of 27240527 is about 300.8882084314. Note that the first 3 decimals are identical.

Adding to 27240527 its reverse (72504272), we get a palindrome (99744799).

The spelling of 27240527 in words is "twenty-seven million, two hundred forty thousand, five hundred twenty-seven".