5518959 has 4 divisors (see below), whose sum is σ = 7358616. Its totient is φ = 3679304.

The previous prime is 5518951. The next prime is 5518967. The reversal of 5518959 is 9598155.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (5518951) and next prime (5518967).

It is a cyclic number.

It is not a de Polignac number, because 5518959 - 2³ = 5518951 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 5518959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5518951) 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 in 3 ways as a sum of consecutive naturals, for example, 919824 + ... + 919829.

It is an arithmetic number, because the mean of its divisors is an integer number (1839654).

Almost surely, 2^5518959 is an apocalyptic number.

5518959 is a deficient number, since it is larger than the sum of its proper divisors (1839657).

5518959 is a wasteful number, since it uses less digits than its factorization.

5518959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839656.

The product of its digits is 81000, while the sum is 42.

The square root of 5518959 is about 2349.2464749362. The cubic root of 5518959 is about 176.7200080217.

The spelling of 5518959 in words is "five million, five hundred eighteen thousand, nine hundred fifty-nine".