5518041881 has 16 divisors (see below), whose sum is σ = 6223520256. Its totient is φ = 4847040000.

The previous prime is 5518041857. The next prime is 5518041899. The reversal of 5518041881 is 1881408155.

It is a de Polignac number, because none of the positive numbers 2^k-5518041881 is a prime.

It is a super-2 number, since 2×5518041881² = 60897572400940036322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5518041181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213161 + ... + 237641.

It is an arithmetic number, because the mean of its divisors is an integer number (388970016).

Almost surely, 2^5518041881 is an apocalyptic number.

It is an amenable number.

5518041881 is a deficient number, since it is larger than the sum of its proper divisors (705478375).

5518041881 is a wasteful number, since it uses less digits than its factorization.

5518041881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25184.

The product of its (nonzero) digits is 51200, while the sum is 41.

The square root of 5518041881 is about 74283.5236172868. The cubic root of 5518041881 is about 1767.1021859973.

The spelling of 5518041881 in words is "five billion, five hundred eighteen million, forty-one thousand, eight hundred eighty-one".