19875995 has 8 divisors (see below), whose sum is σ = 25106640. Its totient is φ = 15063840.

The previous prime is 19875967. The next prime is 19875997. The reversal of 19875995 is 59957891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19875995 - 2¹⁰ = 19874971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19875997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104516 + ... + 104705.

It is an arithmetic number, because the mean of its divisors is an integer number (3138330).

Almost surely, 2^19875995 is an apocalyptic number.

19875995 is a deficient number, since it is larger than the sum of its proper divisors (5230645).

19875995 is a wasteful number, since it uses less digits than its factorization.

19875995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209245.

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

The square root of 19875995 is about 4458.2502172938. The cubic root of 19875995 is about 270.8795959367.

The spelling of 19875995 in words is "nineteen million, eight hundred seventy-five thousand, nine hundred ninety-five".