18055027 has 4 divisors (see below), whose sum is σ = 18214920. Its totient is φ = 17895136.

The previous prime is 18055019. The next prime is 18055031. The reversal of 18055027 is 72055081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18055027 - 2³ = 18055019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18054986 and 18055004.

It is not an unprimeable number, because it can be changed into a prime (18055327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79777 + ... + 80002.

It is an arithmetic number, because the mean of its divisors is an integer number (4553730).

Almost surely, 2^18055027 is an apocalyptic number.

18055027 is a deficient number, since it is larger than the sum of its proper divisors (159893).

18055027 is a wasteful number, since it uses less digits than its factorization.

18055027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159892.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 18055027 is about 4249.1207325752. The cubic root of 18055027 is about 262.3409261460.

The spelling of 18055027 in words is "eighteen million, fifty-five thousand, twenty-seven".