5618911 has 2 divisors, whose sum is σ = 5618912. Its totient is φ = 5618910.

The previous prime is 5618909. The next prime is 5618929. The reversal of 5618911 is 1198165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5618911 - 2¹ = 5618909 is a prime.

Together with 5618909, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5618941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2809455 + 2809456.

It is an arithmetic number, because the mean of its divisors is an integer number (2809456).

Almost surely, 2^5618911 is an apocalyptic number.

5618911 is a deficient number, since it is larger than the sum of its proper divisors (1).

5618911 is an equidigital number, since it uses as much as digits as its factorization.

5618911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 31.

The square root of 5618911 is about 2370.4242236359. The cubic root of 5618911 is about 177.7804704309.

The spelling of 5618911 in words is "five million, six hundred eighteen thousand, nine hundred eleven".