18850825 has 12 divisors (see below), whose sum is σ = 26714560. Its totient is φ = 12926160.

The previous prime is 18850817. The next prime is 18850829. The reversal of 18850825 is 52805881.

It is not a de Polignac number, because 18850825 - 2³ = 18850817 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (18850829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53685 + ... + 54034.

Almost surely, 2^18850825 is an apocalyptic number.

It is an amenable number.

18850825 is a deficient number, since it is larger than the sum of its proper divisors (7863735).

18850825 is a wasteful number, since it uses less digits than its factorization.

18850825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107736 (or 107731 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 37.

The square root of 18850825 is about 4341.7536779509. The cubic root of 18850825 is about 266.1399804061.

The spelling of 18850825 in words is "eighteen million, eight hundred fifty thousand, eight hundred twenty-five".