27054421 has 2 divisors, whose sum is σ = 27054422. Its totient is φ = 27054420.

The previous prime is 27054409. The next prime is 27054449. The reversal of 27054421 is 12445072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24147396 + 2907025 = 4914^2 + 1705^2 .

It is a cyclic number.

It is not a de Polignac number, because 27054421 - 2¹¹ = 27052373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27054481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13527210 + 13527211.

It is an arithmetic number, because the mean of its divisors is an integer number (13527211).

Almost surely, 2^27054421 is an apocalyptic number.

It is an amenable number.

27054421 is a deficient number, since it is larger than the sum of its proper divisors (1).

27054421 is an equidigital number, since it uses as much as digits as its factorization.

27054421 is an odious number, because the sum of its binary digits is odd.

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

The square root of 27054421 is about 5201.3864497843. The cubic root of 27054421 is about 300.2014239902.

Adding to 27054421 its reverse (12445072), we get a palindrome (39499493).

The spelling of 27054421 in words is "twenty-seven million, fifty-four thousand, four hundred twenty-one".