16319325 has 48 divisors (see below), whose sum is σ = 29855232. Its totient is φ = 7800000.

The previous prime is 16319323. The next prime is 16319333. The reversal of 16319325 is 52391361.

16319325 = 356² + 357² + ... + 454².

It is not a de Polignac number, because 16319325 - 2¹ = 16319323 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16319292 and 16319301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16319321) 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 47 ways as a sum of consecutive naturals, for example, 108000 + ... + 108150.

It is an arithmetic number, because the mean of its divisors is an integer number (621984).

Almost surely, 2^16319325 is an apocalyptic number.

16319325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16319325 is a deficient number, since it is larger than the sum of its proper divisors (13535907).

16319325 is a wasteful number, since it uses less digits than its factorization.

16319325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 301 counting only the distinct ones).

The product of its digits is 4860, while the sum is 30.

The square root of 16319325 is about 4039.7184307820. The cubic root of 16319325 is about 253.6495311126.

Subtracting 16319325 from its reverse (52391361), we obtain a square (36072036 = 6006²).

The spelling of 16319325 in words is "sixteen million, three hundred nineteen thousand, three hundred twenty-five".