27254221 has 2 divisors, whose sum is σ = 27254222. Its totient is φ = 27254220.

The previous prime is 27254207. The next prime is 27254231. The reversal of 27254221 is 12245272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22458121 + 4796100 = 4739^2 + 2190^2 .

It is a cyclic number.

It is not a de Polignac number, because 27254221 - 2⁷ = 27254093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27254231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13627110 + 13627111.

It is an arithmetic number, because the mean of its divisors is an integer number (13627111).

Almost surely, 2^27254221 is an apocalyptic number.

It is an amenable number.

27254221 is a deficient number, since it is larger than the sum of its proper divisors (1).

27254221 is an equidigital number, since it uses as much as digits as its factorization.

27254221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2240, while the sum is 25.

The square root of 27254221 is about 5220.5575372751. The cubic root of 27254221 is about 300.9386195080.

Adding to 27254221 its reverse (12245272), we get a palindrome (39499493).

The spelling of 27254221 in words is "twenty-seven million, two hundred fifty-four thousand, two hundred twenty-one".