16945552 has 40 divisors (see below), whose sum is σ = 35607096. Its totient is φ = 7766016.

The previous prime is 16945543. The next prime is 16945553. The reversal of 16945552 is 25554961.

It can be written as a sum of positive squares in 4 ways, for example, as 1073296 + 15872256 = 1036^2 + 3984^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16945553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53298 + ... + 53614.

Almost surely, 2^16945552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16945552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17803548).

16945552 is an abundant number, since it is smaller than the sum of its proper divisors (18661544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16945552 is a wasteful number, since it uses less digits than its factorization.

16945552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595 (or 589 counting only the distinct ones).

The product of its digits is 54000, while the sum is 37.

The square root of 16945552 is about 4116.4975403855. The cubic root of 16945552 is about 256.8533534327.

The spelling of 16945552 in words is "sixteen million, nine hundred forty-five thousand, five hundred fifty-two".