18108552 has 128 divisors (see below), whose sum is σ = 58060800. Its totient is φ = 4569600.

The previous prime is 18108529. The next prime is 18108581. The reversal of 18108552 is 25580181.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75649 + ... + 75887.

It is an arithmetic number, because the mean of its divisors is an integer number (453600).

Almost surely, 2^18108552 is an apocalyptic number.

18108552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18108552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29030400).

18108552 is an abundant number, since it is smaller than the sum of its proper divisors (39952248).

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

18108552 is a wasteful number, since it uses less digits than its factorization.

18108552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 30.

The square root of 18108552 is about 4255.4144334013. The cubic root of 18108552 is about 262.5999111739.

The spelling of 18108552 in words is "eighteen million, one hundred eight thousand, five hundred fifty-two".