18064555 has 8 divisors (see below), whose sum is σ = 21757392. Its totient is φ = 14398368.

The previous prime is 18064549. The next prime is 18064567. The reversal of 18064555 is 55546081.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 18064555 - 2⁷ = 18064427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18064555.

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, 5137 + ... + 7906.

It is an arithmetic number, because the mean of its divisors is an integer number (2719674).

Almost surely, 2^18064555 is an apocalyptic number.

18064555 is a deficient number, since it is larger than the sum of its proper divisors (3692837).

18064555 is a wasteful number, since it uses less digits than its factorization.

18064555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13325.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 18064555 is about 4250.2417578298. The cubic root of 18064555 is about 262.3870655541.

The spelling of 18064555 in words is "eighteen million, sixty-four thousand, five hundred fifty-five".