16522325 has 6 divisors (see below), whose sum is σ = 20487714. Its totient is φ = 13217840.

The previous prime is 16522307. The next prime is 16522327. The reversal of 16522325 is 52322561.

It can be written as a sum of positive squares in 3 ways, for example, as 3511876 + 13010449 = 1874^2 + 3607^2 .

It is a de Polignac number, because none of the positive numbers 2^k-16522325 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16522294 and 16522303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16522327) 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 5 ways as a sum of consecutive naturals, for example, 330422 + ... + 330471.

It is an arithmetic number, because the mean of its divisors is an integer number (3414619).

Almost surely, 2^16522325 is an apocalyptic number.

It is an amenable number.

16522325 is a deficient number, since it is larger than the sum of its proper divisors (3965389).

16522325 is an equidigital number, since it uses as much as digits as its factorization.

16522325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660903 (or 660898 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 16522325 is about 4064.7662909447. The cubic root of 16522325 is about 254.6969358668.

Adding to 16522325 its reverse (52322561), we get a palindrome (68844886).

The spelling of 16522325 in words is "sixteen million, five hundred twenty-two thousand, three hundred twenty-five".