16641325 has 12 divisors (see below), whose sum is σ = 20721888. Its totient is φ = 13257200.

The previous prime is 16641319. The next prime is 16641343. The reversal of 16641325 is 52314661.

It is not a de Polignac number, because 16641325 - 2⁵ = 16641293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16641293 and 16641302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5310 + ... + 7840.

It is an arithmetic number, because the mean of its divisors is an integer number (1726824).

Almost surely, 2^16641325 is an apocalyptic number.

It is an amenable number.

16641325 is a deficient number, since it is larger than the sum of its proper divisors (4080563).

16641325 is a wasteful number, since it uses less digits than its factorization.

16641325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804 (or 2799 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 16641325 is about 4079.3780163157. The cubic root of 16641325 is about 255.3069480712.

Adding to 16641325 its reverse (52314661), we get a palindrome (68955986).

The spelling of 16641325 in words is "sixteen million, six hundred forty-one thousand, three hundred twenty-five".