18750425 has 12 divisors (see below), whose sum is σ = 23409216. Its totient is φ = 14898000.

The previous prime is 18750421. The next prime is 18750437. The reversal of 18750425 is 52405781.

It is not a de Polignac number, because 18750425 - 2² = 18750421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18750391 and 18750400.

It is not an unprimeable number, because it can be changed into a prime (18750421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1292 + ... + 6258.

It is an arithmetic number, because the mean of its divisors is an integer number (1950768).

Almost surely, 2^18750425 is an apocalyptic number.

It is an amenable number.

18750425 is a deficient number, since it is larger than the sum of its proper divisors (4658791).

18750425 is a wasteful number, since it uses less digits than its factorization.

18750425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5128 (or 5123 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 18750425 is about 4330.1760934170. The cubic root of 18750425 is about 265.6666495245. Note that the first 4 decimals are identical.

The spelling of 18750425 in words is "eighteen million, seven hundred fifty thousand, four hundred twenty-five".