19996875 has 60 divisors (see below), whose sum is σ = 37810080. Its totient is φ = 10530000.

The previous prime is 19996871. The next prime is 19996927. The reversal of 19996875 is 57869991.

It is not a de Polignac number, because 19996875 - 2² = 19996871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19996871) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 253086 + ... + 253164.

It is an arithmetic number, because the mean of its divisors is an integer number (630168).

Almost surely, 2^19996875 is an apocalyptic number.

19996875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19996875 is a deficient number, since it is larger than the sum of its proper divisors (17813205).

19996875 is an frugal number, since it uses more digits than its factorization.

19996875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 87 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 54.

The square root of 19996875 is about 4471.7865557292. The cubic root of 19996875 is about 271.4276233313.

The spelling of 19996875 in words is "nineteen million, nine hundred ninety-six thousand, eight hundred seventy-five".