18902025 has 48 divisors (see below), whose sum is σ = 35622720. Its totient is φ = 9820800.

The previous prime is 18901957. The next prime is 18902041. The reversal of 18902025 is 52020981.

18902025 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 18902025 - 2⁸ = 18901769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18902025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27334 + ... + 28016.

It is an arithmetic number, because the mean of its divisors is an integer number (742140).

Almost surely, 2^18902025 is an apocalyptic number.

18902025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18902025 is a deficient number, since it is larger than the sum of its proper divisors (16720695).

18902025 is a wasteful number, since it uses less digits than its factorization.

18902025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 18902025 is about 4347.6459147451. The cubic root of 18902025 is about 266.3807134402.

The spelling of 18902025 in words is "eighteen million, nine hundred two thousand, twenty-five".