18872425 has 24 divisors (see below), whose sum is σ = 27498240. Its totient is φ = 12667200.

The previous prime is 18872419. The next prime is 18872429. The reversal of 18872425 is 52427881.

It is not a de Polignac number, because 18872425 - 2⁹ = 18871913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18872429) 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, 936 + ... + 6214.

It is an arithmetic number, because the mean of its divisors is an integer number (1145760).

Almost surely, 2^18872425 is an apocalyptic number.

It is an amenable number.

18872425 is a deficient number, since it is larger than the sum of its proper divisors (8625815).

18872425 is a wasteful number, since it uses less digits than its factorization.

18872425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5313 (or 5308 counting only the distinct ones).

The product of its digits is 35840, while the sum is 37.

The square root of 18872425 is about 4344.2404399388. The cubic root of 18872425 is about 266.2415927459.

The spelling of 18872425 in words is "eighteen million, eight hundred seventy-two thousand, four hundred twenty-five".