16534225 has 12 divisors (see below), whose sum is σ = 20577676. Its totient is φ = 13178880.

The previous prime is 16534213. The next prime is 16534229. The reversal of 16534225 is 52243561.

It can be written as a sum of positive squares in 6 ways, for example, as 9690769 + 6843456 = 3113^2 + 2616^2 .

It is not a de Polignac number, because 16534225 - 2¹³ = 16526033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16534193 and 16534202.

It is not an unprimeable number, because it can be changed into a prime (16534229) 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 11 ways as a sum of consecutive naturals, for example, 6769 + ... + 8881.

Almost surely, 2^16534225 is an apocalyptic number.

It is an amenable number.

16534225 is a deficient number, since it is larger than the sum of its proper divisors (4043451).

16534225 is a wasteful number, since it uses less digits than its factorization.

16534225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436 (or 2431 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 16534225 is about 4066.2298262641. The cubic root of 16534225 is about 254.7580686306.

Adding to 16534225 its reverse (52243561), we get a palindrome (68777786).

The spelling of 16534225 in words is "sixteen million, five hundred thirty-four thousand, two hundred twenty-five".