18452485 has 4 divisors (see below), whose sum is σ = 22142988. Its totient is φ = 14761984.

The previous prime is 18452453. The next prime is 18452491. The reversal of 18452485 is 58425481.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58425481 = 17 ⋅3436793.

It can be written as a sum of positive squares in 2 ways, for example, as 14638276 + 3814209 = 3826^2 + 1953^2 .

It is a cyclic number.

It is not a de Polignac number, because 18452485 - 2⁵ = 18452453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1845244 + ... + 1845253.

It is an arithmetic number, because the mean of its divisors is an integer number (5535747).

Almost surely, 2^18452485 is an apocalyptic number.

It is an amenable number.

18452485 is a deficient number, since it is larger than the sum of its proper divisors (3690503).

18452485 is an equidigital number, since it uses as much as digits as its factorization.

18452485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690502.

The product of its digits is 51200, while the sum is 37.

The square root of 18452485 is about 4295.6355757909. The cubic root of 18452485 is about 264.2520024480.

The spelling of 18452485 in words is "eighteen million, four hundred fifty-two thousand, four hundred eighty-five".