16655125 has 8 divisors (see below), whose sum is σ = 20785752. Its totient is φ = 13324000.

The previous prime is 16655117. The next prime is 16655129. The reversal of 16655125 is 52155661.

It can be written as a sum of positive squares in 4 ways, for example, as 470596 + 16184529 = 686^2 + 4023^2 .

It is not a de Polignac number, because 16655125 - 2³ = 16655117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16655129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66496 + ... + 66745.

It is an arithmetic number, because the mean of its divisors is an integer number (2598219).

Almost surely, 2^16655125 is an apocalyptic number.

It is an amenable number.

16655125 is a deficient number, since it is larger than the sum of its proper divisors (4130627).

16655125 is an equidigital number, since it uses as much as digits as its factorization.

16655125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133256 (or 133246 counting only the distinct ones).

The product of its digits is 9000, while the sum is 31.

The square root of 16655125 is about 4081.0691001256. The cubic root of 16655125 is about 255.3775005950.

The spelling of 16655125 in words is "sixteen million, six hundred fifty-five thousand, one hundred twenty-five".