19875425 has 12 divisors (see below), whose sum is σ = 25943280. Its totient is φ = 15063120.

The previous prime is 19875409. The next prime is 19875437. The reversal of 19875425 is 52457891.

It is not a de Polignac number, because 19875425 - 2⁴ = 19875409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20447 + ... + 21396.

It is an arithmetic number, because the mean of its divisors is an integer number (2161940).

Almost surely, 2^19875425 is an apocalyptic number.

It is an amenable number.

19875425 is a deficient number, since it is larger than the sum of its proper divisors (6067855).

19875425 is a wasteful number, since it uses less digits than its factorization.

19875425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41872 (or 41867 counting only the distinct ones).

The product of its digits is 100800, while the sum is 41.

The square root of 19875425 is about 4458.1862904100. The cubic root of 19875425 is about 270.8770065008.

The spelling of 19875425 in words is "nineteen million, eight hundred seventy-five thousand, four hundred twenty-five".