19975825 has 12 divisors (see below), whose sum is σ = 24842160. Its totient is φ = 15934160.

The previous prime is 19975771. The next prime is 19975843. The reversal of 19975825 is 52857991.

It is not a de Polignac number, because 19975825 - 2¹⁷ = 19844753 is a prime.

It is an unprimeable number.

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, 9522 + ... + 11428.

It is an arithmetic number, because the mean of its divisors is an integer number (2070180).

Almost surely, 2^19975825 is an apocalyptic number.

It is an amenable number.

19975825 is a deficient number, since it is larger than the sum of its proper divisors (4866335).

19975825 is a wasteful number, since it uses less digits than its factorization.

19975825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2336 (or 2331 counting only the distinct ones).

The product of its digits is 226800, while the sum is 46.

The square root of 19975825 is about 4469.4322905711. The cubic root of 19975825 is about 271.3323491537.

The spelling of 19975825 in words is "nineteen million, nine hundred seventy-five thousand, eight hundred twenty-five".