27230521 has 2 divisors, whose sum is σ = 27230522. Its totient is φ = 27230520.

The previous prime is 27230491. The next prime is 27230561. The reversal of 27230521 is 12503272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24206400 + 3024121 = 4920^2 + 1739^2 .

It is a cyclic number.

It is not a de Polignac number, because 27230521 - 2⁹ = 27230009 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 27230492 and 27230501.

It is not a weakly prime, because it can be changed into another prime (27230561) 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, 13615260 + 13615261.

It is an arithmetic number, because the mean of its divisors is an integer number (13615261).

Almost surely, 2^27230521 is an apocalyptic number.

It is an amenable number.

27230521 is a deficient number, since it is larger than the sum of its proper divisors (1).

27230521 is an equidigital number, since it uses as much as digits as its factorization.

27230521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 27230521 is about 5218.2871710936. The cubic root of 27230521 is about 300.8513631320.

Adding to 27230521 its reverse (12503272), we get a palindrome (39733793).

The spelling of 27230521 in words is "twenty-seven million, two hundred thirty thousand, five hundred twenty-one".