16273825 has 6 divisors (see below), whose sum is σ = 20179574. Its totient is φ = 13019040.

The previous prime is 16273801. The next prime is 16273837. The reversal of 16273825 is 52837261.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 305809 + 15968016 = 553^2 + 3996^2 .

It is not a de Polignac number, because 16273825 - 2²³ = 7885217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 325452 + ... + 325501.

Almost surely, 2^16273825 is an apocalyptic number.

It is an amenable number.

16273825 is a deficient number, since it is larger than the sum of its proper divisors (3905749).

16273825 is an equidigital number, since it uses as much as digits as its factorization.

16273825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650963 (or 650958 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 16273825 is about 4034.0829193263. The cubic root of 16273825 is about 253.4135778036.

The spelling of 16273825 in words is "sixteen million, two hundred seventy-three thousand, eight hundred twenty-five".