27500027 has 2 divisors, whose sum is σ = 27500028. Its totient is φ = 27500026.

The previous prime is 27500023. The next prime is 27500047. The reversal of 27500027 is 72000572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27500027 - 2² = 27500023 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 27499975 and 27500011.

It is not a weakly prime, because it can be changed into another prime (27500023) 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, 13750013 + 13750014.

It is an arithmetic number, because the mean of its divisors is an integer number (13750014).

Almost surely, 2^27500027 is an apocalyptic number.

27500027 is a deficient number, since it is larger than the sum of its proper divisors (1).

27500027 is an equidigital number, since it uses as much as digits as its factorization.

27500027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 27500027 is about 5244.0468151991. The cubic root of 27500027 is about 301.8406356240.

Adding to 27500027 its reverse (72000572), we get a palindrome (99500599).

The spelling of 27500027 in words is "twenty-seven million, five hundred thousand, twenty-seven".