27270251 has 2 divisors, whose sum is σ = 27270252. Its totient is φ = 27270250.

The previous prime is 27270239. The next prime is 27270253. The reversal of 27270251 is 15207272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27270251 - 2¹⁰ = 27269227 is a prime.

Together with 27270253, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27270251.

It is not a weakly prime, because it can be changed into another prime (27270253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13635125 + 13635126.

It is an arithmetic number, because the mean of its divisors is an integer number (13635126).

Almost surely, 2^27270251 is an apocalyptic number.

27270251 is a deficient number, since it is larger than the sum of its proper divisors (1).

27270251 is an equidigital number, since it uses as much as digits as its factorization.

27270251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 27270251 is about 5222.0925882255. The cubic root of 27270251 is about 300.9976085431.

The spelling of 27270251 in words is "twenty-seven million, two hundred seventy thousand, two hundred fifty-one".