16385552 has 40 divisors (see below), whose sum is σ = 33988896. Its totient is φ = 7625216.

The previous prime is 16385521. The next prime is 16385557. The reversal of 16385552 is 25558361.

It is not an unprimeable number, because it can be changed into a prime (16385557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28823 + ... + 29385.

Almost surely, 2^16385552 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 16385552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16994448).

16385552 is an abundant number, since it is smaller than the sum of its proper divisors (17603344).

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

16385552 is a wasteful number, since it uses less digits than its factorization.

16385552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695 (or 689 counting only the distinct ones).

The product of its digits is 36000, while the sum is 35.

The square root of 16385552 is about 4047.9071135588. The cubic root of 16385552 is about 253.9921877441.

The spelling of 16385552 in words is "sixteen million, three hundred eighty-five thousand, five hundred fifty-two".