19995875 has 16 divisors (see below), whose sum is σ = 25081056. Its totient is φ = 15916000.

The previous prime is 19995869. The next prime is 19995881. The reversal of 19995875 is 57859991.

It is an interprime number because it is at equal distance from previous prime (19995869) and next prime (19995881).

It is not a de Polignac number, because 19995875 - 2¹⁸ = 19733731 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43145 + ... + 43605.

It is an arithmetic number, because the mean of its divisors is an integer number (1567566).

Almost surely, 2^19995875 is an apocalyptic number.

19995875 is a deficient number, since it is larger than the sum of its proper divisors (5085181).

19995875 is an equidigital number, since it uses as much as digits as its factorization.

19995875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823 (or 813 counting only the distinct ones).

The product of its digits is 1020600, while the sum is 53.

The square root of 19995875 is about 4471.6747421967. The cubic root of 19995875 is about 271.4230987552.

The spelling of 19995875 in words is "nineteen million, nine hundred ninety-five thousand, eight hundred seventy-five".