16528505 has 16 divisors (see below), whose sum is σ = 24001920. Its totient is φ = 10666752.

The previous prime is 16528483. The next prime is 16528507. The reversal of 16528505 is 50582561.

It is not a de Polignac number, because 16528505 - 2¹⁰ = 16527481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16528507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13295 + ... + 14484.

It is an arithmetic number, because the mean of its divisors is an integer number (1500120).

Almost surely, 2^16528505 is an apocalyptic number.

It is an amenable number.

16528505 is a deficient number, since it is larger than the sum of its proper divisors (7473415).

16528505 is a wasteful number, since it uses less digits than its factorization.

16528505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27808.

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 16528505 is about 4065.5264111797. The cubic root of 16528505 is about 254.7286874686.

The spelling of 16528505 in words is "sixteen million, five hundred twenty-eight thousand, five hundred five".