16518053 has 4 divisors (see below), whose sum is σ = 16798080. Its totient is φ = 16238028.

The previous prime is 16518043. The next prime is 16518077. The reversal of 16518053 is 35081561.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35081561 = 29 ⋅1209709.

It is a cyclic number.

It is not a de Polignac number, because 16518053 - 2⁴ = 16518037 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 (16518013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139925 + ... + 140042.

It is an arithmetic number, because the mean of its divisors is an integer number (4199520).

Almost surely, 2^16518053 is an apocalyptic number.

It is an amenable number.

16518053 is a deficient number, since it is larger than the sum of its proper divisors (280027).

16518053 is an equidigital number, since it uses as much as digits as its factorization.

16518053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280026.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 16518053 is about 4064.2407655059. The cubic root of 16518053 is about 254.6749825582.

The spelling of 16518053 in words is "sixteen million, five hundred eighteen thousand, fifty-three".