16591252 has 12 divisors (see below), whose sum is σ = 30742740. Its totient is φ = 7807616.

The previous prime is 16591247. The next prime is 16591271. The reversal of 16591252 is 25219561.

It can be written as a sum of positive squares in 2 ways, for example, as 10850436 + 5740816 = 3294^2 + 2396^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 121927 + ... + 122062.

It is an arithmetic number, because the mean of its divisors is an integer number (2561895).

Almost surely, 2^16591252 is an apocalyptic number.

It is an amenable number.

16591252 is a deficient number, since it is larger than the sum of its proper divisors (14151488).

16591252 is a wasteful number, since it uses less digits than its factorization.

16591252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244010 (or 244008 counting only the distinct ones).

The product of its digits is 5400, while the sum is 31.

The square root of 16591252 is about 4073.2360599405. The cubic root of 16591252 is about 255.0506217583.

The spelling of 16591252 in words is "sixteen million, five hundred ninety-one thousand, two hundred fifty-two".