18325560 has 64 divisors (see below), whose sum is σ = 59978880. Its totient is φ = 4442240.

The previous prime is 18325537. The next prime is 18325579. The reversal of 18325560 is 6552381.

It is a super-2 number, since 2×18325560² = 671652298627200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5622 + ... + 8261.

It is an arithmetic number, because the mean of its divisors is an integer number (937170).

Almost surely, 2^18325560 is an apocalyptic number.

18325560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18325560 is an abundant number, since it is smaller than the sum of its proper divisors (41653320).

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

18325560 is a wasteful number, since it uses less digits than its factorization.

18325560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13908 (or 13904 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 18325560 is about 4280.8363668797. The cubic root of 18325560 is about 263.6447241250.

It can be divided in two parts, 183255 and 60, that added together give a triangular number (183315 = T₆₀₅).

The spelling of 18325560 in words is "eighteen million, three hundred twenty-five thousand, five hundred sixty".