16522249 has 8 divisors (see below), whose sum is σ = 17564040. Its totient is φ = 15488256.

The previous prime is 16522243. The next prime is 16522271. The reversal of 16522249 is 94222561.

It can be written as a sum of positive squares in 4 ways, for example, as 176400 + 16345849 = 420^2 + 4043^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16522249 - 2⁹ = 16521737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16522249.

It is not an unprimeable number, because it can be changed into a prime (16522243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2767 + ... + 6379.

It is an arithmetic number, because the mean of its divisors is an integer number (2195505).

Almost surely, 2^16522249 is an apocalyptic number.

It is an amenable number.

16522249 is a deficient number, since it is larger than the sum of its proper divisors (1041791).

16522249 is a wasteful number, since it uses less digits than its factorization.

16522249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3899.

The product of its digits is 8640, while the sum is 31.

The square root of 16522249 is about 4064.7569423029. The cubic root of 16522249 is about 254.6965453447.

The spelling of 16522249 in words is "sixteen million, five hundred twenty-two thousand, two hundred forty-nine".