16604325 has 48 divisors (see below), whose sum is σ = 32319360. Its totient is φ = 8328960.

The previous prime is 16604323. The next prime is 16604339. The reversal of 16604325 is 52340661.

It is not a de Polignac number, because 16604325 - 2¹ = 16604323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16604323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10752 + ... + 12198.

It is an arithmetic number, because the mean of its divisors is an integer number (673320).

Almost surely, 2^16604325 is an apocalyptic number.

16604325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16604325 is a deficient number, since it is larger than the sum of its proper divisors (15715035).

16604325 is a wasteful number, since it uses less digits than its factorization.

16604325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483 (or 1472 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 16604325 is about 4074.8404876756. The cubic root of 16604325 is about 255.1175928228.

Adding to 16604325 its reverse (52340661), we get a palindrome (68944986).

The spelling of 16604325 in words is "sixteen million, six hundred four thousand, three hundred twenty-five".