18552080 has 20 divisors (see below), whose sum is σ = 43133772. Its totient is φ = 7420800.

The previous prime is 18552073. The next prime is 18552103. The reversal of 18552080 is 8025581.

It can be written as a sum of positive squares in 2 ways, for example, as 11916304 + 6635776 = 3452^2 + 2576^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115871 + ... + 116030.

Almost surely, 2^18552080 is an apocalyptic number.

18552080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18552080 is an abundant number, since it is smaller than the sum of its proper divisors (24581692).

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

18552080 is a wasteful number, since it uses less digits than its factorization.

18552080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231914 (or 231908 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 18552080 is about 4307.2125557024. The cubic root of 18552080 is about 264.7265721325.

The spelling of 18552080 in words is "eighteen million, five hundred fifty-two thousand, eighty".