18025575 has 12 divisors (see below), whose sum is σ = 29802408. Its totient is φ = 9613600.

The previous prime is 18025543. The next prime is 18025577. The reversal of 18025575 is 57552081.

It is a happy number.

It is not a de Polignac number, because 18025575 - 2⁵ = 18025543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18025577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120096 + ... + 120245.

It is an arithmetic number, because the mean of its divisors is an integer number (2483534).

Almost surely, 2^18025575 is an apocalyptic number.

18025575 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18025575 is a deficient number, since it is larger than the sum of its proper divisors (11776833).

18025575 is a wasteful number, since it uses less digits than its factorization.

18025575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240354 (or 240349 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 33.

The square root of 18025575 is about 4245.6536599209. The cubic root of 18025575 is about 262.1982019064.

The spelling of 18025575 in words is "eighteen million, twenty-five thousand, five hundred seventy-five".