19872625 has 8 divisors (see below), whose sum is σ = 24801192. Its totient is φ = 15898000.

The previous prime is 19872623. The next prime is 19872637. The reversal of 19872625 is 52627891.

It can be written as a sum of positive squares in 4 ways, for example, as 1962801 + 17909824 = 1401^2 + 4232^2 .

It is not a de Polignac number, because 19872625 - 2¹ = 19872623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19872623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79366 + ... + 79615.

It is an arithmetic number, because the mean of its divisors is an integer number (3100149).

Almost surely, 2^19872625 is an apocalyptic number.

It is an amenable number.

19872625 is a deficient number, since it is larger than the sum of its proper divisors (4928567).

19872625 is an equidigital number, since it uses as much as digits as its factorization.

19872625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158996 (or 158986 counting only the distinct ones).

The product of its digits is 60480, while the sum is 40.

The square root of 19872625 is about 4457.8722503006. The cubic root of 19872625 is about 270.8642857458.

The spelling of 19872625 in words is "nineteen million, eight hundred seventy-two thousand, six hundred twenty-five".