18414525 has 12 divisors (see below), whose sum is σ = 30445472. Its totient is φ = 9821040.

The previous prime is 18414521. The next prime is 18414533. The reversal of 18414525 is 52541481.

It is not a de Polignac number, because 18414525 - 2² = 18414521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18414492 and 18414501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18414521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122689 + ... + 122838.

Almost surely, 2^18414525 is an apocalyptic number.

18414525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18414525 is a deficient number, since it is larger than the sum of its proper divisors (12030947).

18414525 is a wasteful number, since it uses less digits than its factorization.

18414525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245540 (or 245535 counting only the distinct ones).

The product of its digits is 6400, while the sum is 30.

The square root of 18414525 is about 4291.2148629497. The cubic root of 18414525 is about 264.0706738013.

The spelling of 18414525 in words is "eighteen million, four hundred fourteen thousand, five hundred twenty-five".