5518986 has 16 divisors (see below), whose sum is σ = 12041568. Its totient is φ = 1672400.

The previous prime is 5518967. The next prime is 5519029. The reversal of 5518986 is 6898155.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41745 + ... + 41876.

It is an arithmetic number, because the mean of its divisors is an integer number (752598).

Almost surely, 2^5518986 is an apocalyptic number.

5518986 is an abundant number, since it is smaller than the sum of its proper divisors (6522582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5518986 is a wasteful number, since it uses less digits than its factorization.

5518986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83637.

The product of its digits is 86400, while the sum is 42.

The square root of 5518986 is about 2349.2522214526. The cubic root of 5518986 is about 176.7202962060.

The spelling of 5518986 in words is "five million, five hundred eighteen thousand, nine hundred eighty-six".