5618009 has 2 divisors, whose sum is σ = 5618010. Its totient is φ = 5618008.

The previous prime is 5617999. The next prime is 5618027. The reversal of 5618009 is 9008165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3888784 + 1729225 = 1972^2 + 1315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5618009 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (5618029) 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, 2809004 + 2809005.

It is an arithmetic number, because the mean of its divisors is an integer number (2809005).

Almost surely, 2^5618009 is an apocalyptic number.

It is an amenable number.

5618009 is a deficient number, since it is larger than the sum of its proper divisors (1).

5618009 is an equidigital number, since it uses as much as digits as its factorization.

5618009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 5618009 is about 2370.2339546973. The cubic root of 5618009 is about 177.7709569287.

The spelling of 5618009 in words is "five million, six hundred eighteen thousand, nine".