5555505018 has 96 divisors (see below), whose sum is σ = 13109644800. Its totient is φ = 1536960096.

The previous prime is 5555504989. The next prime is 5555505023. The reversal of 5555505018 is 8105055555.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39967593 + ... + 39967731.

It is an arithmetic number, because the mean of its divisors is an integer number (136558800).

Almost surely, 2^5555505018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5555505018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6554822400).

5555505018 is an abundant number, since it is smaller than the sum of its proper divisors (7554139782).

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

5555505018 is a wasteful number, since it uses less digits than its factorization.

5555505018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 125000, while the sum is 39.

The square root of 5555505018 is about 74535.2602329931. The cubic root of 5555505018 is about 1771.0922448714.

The spelling of 5555505018 in words is "five billion, five hundred fifty-five million, five hundred five thousand, eighteen".