18362225 has 24 divisors (see below), whose sum is σ = 26182848. Its totient is φ = 12513600.

The previous prime is 18362203. The next prime is 18362237. The reversal of 18362225 is 52226381.

It is not a de Polignac number, because 18362225 - 2⁸ = 18361969 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 23 ways as a sum of consecutive naturals, for example, 55310 + ... + 55640.

It is an arithmetic number, because the mean of its divisors is an integer number (1090952).

Almost surely, 2^18362225 is an apocalyptic number.

It is an amenable number.

18362225 is a deficient number, since it is larger than the sum of its proper divisors (7820623).

18362225 is a wasteful number, since it uses less digits than its factorization.

18362225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 660 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 18362225 is about 4285.1166845256. The cubic root of 18362225 is about 263.8204367030.

The spelling of 18362225 in words is "eighteen million, three hundred sixty-two thousand, two hundred twenty-five".