18053011 has 4 divisors (see below), whose sum is σ = 18349024. Its totient is φ = 17757000.

The previous prime is 18052987. The next prime is 18053017. The reversal of 18053011 is 11035081.

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 18053011 - 2⁹ = 18052499 is a prime.

It is a super-2 number, since 2×18053011² = 651822412332242, which contains 22 as substring.

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 18053011.

It is not an unprimeable number, because it can be changed into a prime (18053017) 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, 147915 + ... + 148036.

It is an arithmetic number, because the mean of its divisors is an integer number (4587256).

Almost surely, 2^18053011 is an apocalyptic number.

18053011 is a deficient number, since it is larger than the sum of its proper divisors (296013).

18053011 is an equidigital number, since it uses as much as digits as its factorization.

18053011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296012.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 18053011 is about 4248.8835004034. The cubic root of 18053011 is about 262.3311615710.

Adding to 18053011 its reverse (11035081), we get a palindrome (29088092).

The spelling of 18053011 in words is "eighteen million, fifty-three thousand, eleven".