16292225 has 6 divisors (see below), whose sum is σ = 20202390. Its totient is φ = 13033760.

The previous prime is 16292207. The next prime is 16292281. The reversal of 16292225 is 52229261.

It can be written as a sum of positive squares in 3 ways, for example, as 43264 + 16248961 = 208^2 + 4031^2 .

It is not a de Polignac number, because 16292225 - 2⁶ = 16292161 is a prime.

It is a Curzon 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, 325820 + ... + 325869.

It is an arithmetic number, because the mean of its divisors is an integer number (3367065).

Almost surely, 2^16292225 is an apocalyptic number.

It is an amenable number.

16292225 is a deficient number, since it is larger than the sum of its proper divisors (3910165).

16292225 is an equidigital number, since it uses as much as digits as its factorization.

16292225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651699 (or 651694 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 16292225 is about 4036.3628429565. The cubic root of 16292225 is about 253.5090491837.

The spelling of 16292225 in words is "sixteen million, two hundred ninety-two thousand, two hundred twenty-five".