18250085 has 16 divisors (see below), whose sum is σ = 25101696. Its totient is φ = 12477888.

The previous prime is 18250081. The next prime is 18250093. The reversal of 18250085 is 58005281.

It is a cyclic number.

It is not a de Polignac number, because 18250085 - 2² = 18250081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18250081) 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 15 ways as a sum of consecutive naturals, for example, 17807 + ... + 18803.

It is an arithmetic number, because the mean of its divisors is an integer number (1568856).

Almost surely, 2^18250085 is an apocalyptic number.

It is an amenable number.

18250085 is a deficient number, since it is larger than the sum of its proper divisors (6851611).

18250085 is an equidigital number, since it uses as much as digits as its factorization.

18250085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532.

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 18250085 is about 4272.0118211447. The cubic root of 18250085 is about 263.2822801560.

The spelling of 18250085 in words is "eighteen million, two hundred fifty thousand, eighty-five".