18525041 has 2 divisors, whose sum is σ = 18525042. Its totient is φ = 18525040.

The previous prime is 18525007. The next prime is 18525043. The reversal of 18525041 is 14052581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18524416 + 625 = 4304^2 + 25^2 .

It is an emirp because it is prime and its reverse (14052581) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18525041 - 2⁶ = 18524977 is a prime.

Together with 18525043, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18525041.

It is not a weakly prime, because it can be changed into another prime (18525043) 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 as a sum of consecutive naturals, namely, 9262520 + 9262521.

It is an arithmetic number, because the mean of its divisors is an integer number (9262521).

Almost surely, 2^18525041 is an apocalyptic number.

It is an amenable number.

18525041 is a deficient number, since it is larger than the sum of its proper divisors (1).

18525041 is an equidigital number, since it uses as much as digits as its factorization.

18525041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 18525041 is about 4304.0726062649. The cubic root of 18525041 is about 264.5978997306.

The spelling of 18525041 in words is "eighteen million, five hundred twenty-five thousand, forty-one".