18053575 has 24 divisors (see below), whose sum is σ = 23985072. Its totient is φ = 13432320.

The previous prime is 18053533. The next prime is 18053599. The reversal of 18053575 is 57535081.

It is a de Polignac number, because none of the positive numbers 2^k-18053575 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 18053575.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45277 + ... + 45673.

It is an arithmetic number, because the mean of its divisors is an integer number (999378).

Almost surely, 2^18053575 is an apocalyptic number.

18053575 is a deficient number, since it is larger than the sum of its proper divisors (5931497).

18053575 is a wasteful number, since it uses less digits than its factorization.

18053575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 18053575 is about 4248.9498702621. The cubic root of 18053575 is about 262.3338934004. Note that the first 3 decimals are identical.

The spelling of 18053575 in words is "eighteen million, fifty-three thousand, five hundred seventy-five".