27220601 has 2 divisors, whose sum is σ = 27220602. Its totient is φ = 27220600.

The previous prime is 27220541. The next prime is 27220607. The reversal of 27220601 is 10602272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14830201 + 12390400 = 3851^2 + 3520^2 .

It is a cyclic number.

It is not a de Polignac number, because 27220601 - 2¹⁴ = 27204217 is a prime.

It is a super-2 number, since 2×27220601² = 1481922237602402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (27220607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13610300 + 13610301.

It is an arithmetic number, because the mean of its divisors is an integer number (13610301).

Almost surely, 2^27220601 is an apocalyptic number.

It is an amenable number.

27220601 is a deficient number, since it is larger than the sum of its proper divisors (1).

27220601 is an equidigital number, since it uses as much as digits as its factorization.

27220601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 27220601 is about 5217.3365810536. The cubic root of 27220601 is about 300.8148256012.

Adding to 27220601 its reverse (10602272), we get a palindrome (37822873).

The spelling of 27220601 in words is "twenty-seven million, two hundred twenty thousand, six hundred one".