5518418 has 12 divisors (see below), whose sum is σ = 8390382. Its totient is φ = 2722080.

The previous prime is 5518399. The next prime is 5518423. The reversal of 5518418 is 8148155.

It can be written as a sum of positive squares in only one way, i.e., 4133089 + 1385329 = 2033^2 + 1177^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22778 + ... + 23018.

Almost surely, 2^5518418 is an apocalyptic number.

5518418 is a deficient number, since it is larger than the sum of its proper divisors (2871964).

5518418 is a wasteful number, since it uses less digits than its factorization.

5518418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 350 counting only the distinct ones).

The product of its digits is 6400, while the sum is 32.

The square root of 5518418 is about 2349.1313288107. The cubic root of 5518418 is about 176.7142334636.

The spelling of 5518418 in words is "five million, five hundred eighteen thousand, four hundred eighteen".