18260025 has 24 divisors (see below), whose sum is σ = 34503744. Its totient is φ = 8347200.

The previous prime is 18260003. The next prime is 18260027. The reversal of 18260025 is 52006281.

It is not a de Polignac number, because 18260025 - 2⁷ = 18259897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18259977 and 18260004.

It is not an unprimeable number, because it can be changed into a prime (18260027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16866 + ... + 17915.

It is an arithmetic number, because the mean of its divisors is an integer number (1437656).

Almost surely, 2^18260025 is an apocalyptic number.

18260025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18260025 is a deficient number, since it is larger than the sum of its proper divisors (16243719).

18260025 is a wasteful number, since it uses less digits than its factorization.

18260025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34801 (or 34796 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 18260025 is about 4273.1750490707. The cubic root of 18260025 is about 263.3300708172.

The spelling of 18260025 in words is "eighteen million, two hundred sixty thousand, twenty-five".