18027755 has 8 divisors (see below), whose sum is σ = 21666624. Its totient is φ = 14400000.

The previous prime is 18027731. The next prime is 18027761. The reversal of 18027755 is 55772081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-18027755 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1355 + ... + 6155.

It is an arithmetic number, because the mean of its divisors is an integer number (2708328).

Almost surely, 2^18027755 is an apocalyptic number.

18027755 is a deficient number, since it is larger than the sum of its proper divisors (3638869).

18027755 is an equidigital number, since it uses as much as digits as its factorization.

18027755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5557.

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 18027755 is about 4245.9103853002. The cubic root of 18027755 is about 262.2087715006.

The spelling of 18027755 in words is "eighteen million, twenty-seven thousand, seven hundred fifty-five".