5518423 has 2 divisors, whose sum is σ = 5518424. Its totient is φ = 5518422.

The previous prime is 5518399. The next prime is 5518433. The reversal of 5518423 is 3248155.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5518423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5518391 and 5518400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5518433) 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, 2759211 + 2759212.

It is an arithmetic number, because the mean of its divisors is an integer number (2759212).

Almost surely, 2^5518423 is an apocalyptic number.

5518423 is a deficient number, since it is larger than the sum of its proper divisors (1).

5518423 is an equidigital number, since it uses as much as digits as its factorization.

5518423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 28.

The square root of 5518423 is about 2349.1323930336. The cubic root of 5518423 is about 176.7142868346.

The spelling of 5518423 in words is "five million, five hundred eighteen thousand, four hundred twenty-three".