5609281 has 2 divisors, whose sum is σ = 5609282. Its totient is φ = 5609280.

The previous prime is 5609257. The next prime is 5609291. The reversal of 5609281 is 1829065.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5198400 + 410881 = 2280^2 + 641^2 .

It is a cyclic number.

It is not a de Polignac number, because 5609281 - 2⁹ = 5608769 is a prime.

It is a super-2 number, since 2×5609281² = 62928066673922, which contains 22 as substring.

It is a Chen prime.

5609281 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (5609231) 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, 2804640 + 2804641.

It is an arithmetic number, because the mean of its divisors is an integer number (2804641).

Almost surely, 2^5609281 is an apocalyptic number.

It is an amenable number.

5609281 is a deficient number, since it is larger than the sum of its proper divisors (1).

5609281 is an equidigital number, since it uses as much as digits as its factorization.

5609281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 5609281 is about 2368.3920705829. The cubic root of 5609281 is about 177.6788490243.

The spelling of 5609281 in words is "five million, six hundred nine thousand, two hundred eighty-one".