16003252 has 6 divisors (see below), whose sum is σ = 28005698. Its totient is φ = 8001624.

The previous prime is 16003237. The next prime is 16003303. The reversal of 16003252 is 25230061.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10214416 + 5788836 = 3196^2 + 2406^2 .

It is a super-2 number, since 2×16003252² = 512208149151008, which contains 22 as substring.

16003252 is a modest number, since divided by 3252 gives 160 as remainder.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2000403 + ... + 2000410.

Almost surely, 2^16003252 is an apocalyptic number.

It is an amenable number.

16003252 is a deficient number, since it is larger than the sum of its proper divisors (12002446).

16003252 is a wasteful number, since it uses less digits than its factorization.

16003252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4000817 (or 4000815 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 16003252 is about 4000.4064793468. The cubic root of 16003252 is about 252.0012807527.

The spelling of 16003252 in words is "sixteen million, three thousand, two hundred fifty-two".