18025723 has 4 divisors (see below), whose sum is σ = 18096120. Its totient is φ = 17955328.

The previous prime is 18025717. The next prime is 18025727. The reversal of 18025723 is 32752081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18025723 - 2¹⁷ = 17894651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18025691 and 18025700.

It is not an unprimeable number, because it can be changed into a prime (18025727) 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 3 ways as a sum of consecutive naturals, for example, 34813 + ... + 35326.

It is an arithmetic number, because the mean of its divisors is an integer number (4524030).

Almost surely, 2^18025723 is an apocalyptic number.

18025723 is a deficient number, since it is larger than the sum of its proper divisors (70397).

18025723 is an equidigital number, since it uses as much as digits as its factorization.

18025723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70396.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 18025723 is about 4245.6710894745. The cubic root of 18025723 is about 262.1989195022.

The spelling of 18025723 in words is "eighteen million, twenty-five thousand, seven hundred twenty-three".