5618311 has 2 divisors, whose sum is σ = 5618312. Its totient is φ = 5618310.

The previous prime is 5618309. The next prime is 5618317. The reversal of 5618311 is 1138165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5618311 - 2¹ = 5618309 is a prime.

Together with 5618309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5618317) 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, 2809155 + 2809156.

It is an arithmetic number, because the mean of its divisors is an integer number (2809156).

Almost surely, 2^5618311 is an apocalyptic number.

5618311 is a deficient number, since it is larger than the sum of its proper divisors (1).

5618311 is an equidigital number, since it uses as much as digits as its factorization.

5618311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 25.

The square root of 5618311 is about 2370.2976606325. The cubic root of 5618311 is about 177.7741422723.

It can be divided in two parts, 5618 and 311, that added together give a square (5929 = 77²).

The spelling of 5618311 in words is "five million, six hundred eighteen thousand, three hundred eleven".