18025523 has 2 divisors, whose sum is σ = 18025524. Its totient is φ = 18025522.

The previous prime is 18025517. The next prime is 18025531. The reversal of 18025523 is 32552081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18025523 - 2¹⁰ = 18024499 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18025492 and 18025501.

It is not a weakly prime, because it can be changed into another prime (18025543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9012761 + 9012762.

It is an arithmetic number, because the mean of its divisors is an integer number (9012762).

Almost surely, 2^18025523 is an apocalyptic number.

18025523 is a deficient number, since it is larger than the sum of its proper divisors (1).

18025523 is an equidigital number, since it uses as much as digits as its factorization.

18025523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 18025523 is about 4245.6475360067. The cubic root of 18025523 is about 262.1979497773.

The spelling of 18025523 in words is "eighteen million, twenty-five thousand, five hundred twenty-three".