16560825 has 12 divisors (see below), whose sum is σ = 27380688. Its totient is φ = 8832400.

The previous prime is 16560811. The next prime is 16560833. The reversal of 16560825 is 52806561.

It is not a de Polignac number, because 16560825 - 2⁴ = 16560809 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110331 + ... + 110480.

It is an arithmetic number, because the mean of its divisors is an integer number (2281724).

Almost surely, 2^16560825 is an apocalyptic number.

16560825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16560825 is a deficient number, since it is larger than the sum of its proper divisors (10819863).

16560825 is a wasteful number, since it uses less digits than its factorization.

16560825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220824 (or 220819 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 16560825 is about 4069.4993549576. The cubic root of 16560825 is about 254.8946123525.

The spelling of 16560825 in words is "sixteen million, five hundred sixty thousand, eight hundred twenty-five".