5556018 has 64 divisors (see below), whose sum is σ = 13224960. Its totient is φ = 1539648.

The previous prime is 5556017. The next prime is 5556071. The reversal of 5556018 is 8106555.

It is a happy number.

It is a super-3 number, since 3×5556018³ (a number of 21 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5556017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34005 + ... + 34167.

It is an arithmetic number, because the mean of its divisors is an integer number (206640).

Almost surely, 2^5556018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5556018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6612480).

5556018 is an abundant number, since it is smaller than the sum of its proper divisors (7668942).

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

5556018 is a wasteful number, since it uses less digits than its factorization.

5556018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223.

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 5556018 is about 2357.1207011946. The cubic root of 5556018 is about 177.1146755996.

The spelling of 5556018 in words is "five million, five hundred fifty-six thousand, eighteen".