18059653 has 4 divisors (see below), whose sum is σ = 18071680. Its totient is φ = 18047628.

The previous prime is 18059621. The next prime is 18059659. The reversal of 18059653 is 35695081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18059653 - 2⁵ = 18059621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18059659) 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, 3375 + ... + 6892.

It is an arithmetic number, because the mean of its divisors is an integer number (4517920).

Almost surely, 2^18059653 is an apocalyptic number.

It is an amenable number.

18059653 is a deficient number, since it is larger than the sum of its proper divisors (12027).

18059653 is a wasteful number, since it uses less digits than its factorization.

18059653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12026.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 18059653 is about 4249.6650456242. The cubic root of 18059653 is about 262.3633296109.

The spelling of 18059653 in words is "eighteen million, fifty-nine thousand, six hundred fifty-three".