18408053 has 2 divisors, whose sum is σ = 18408054. Its totient is φ = 18408052.

The previous prime is 18408037. The next prime is 18408077. The reversal of 18408053 is 35080481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15507844 + 2900209 = 3938^2 + 1703^2 .

It is an emirp because it is prime and its reverse (35080481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18408053 - 2⁴ = 18408037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18408023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9204026 + 9204027.

It is an arithmetic number, because the mean of its divisors is an integer number (9204027).

Almost surely, 2^18408053 is an apocalyptic number.

It is an amenable number.

18408053 is a deficient number, since it is larger than the sum of its proper divisors (1).

18408053 is an equidigital number, since it uses as much as digits as its factorization.

18408053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 18408053 is about 4290.4606978738. The cubic root of 18408053 is about 264.0397332682.

The spelling of 18408053 in words is "eighteen million, four hundred eight thousand, fifty-three".