16382225 has 6 divisors (see below), whose sum is σ = 20313990. Its totient is φ = 13105760.

The previous prime is 16382209. The next prime is 16382227. The reversal of 16382225 is 52228361.

It can be written as a sum of positive squares in 3 ways, for example, as 1203409 + 15178816 = 1097^2 + 3896^2 .

It is not a de Polignac number, because 16382225 - 2⁴ = 16382209 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16382227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 327620 + ... + 327669.

It is an arithmetic number, because the mean of its divisors is an integer number (3385665).

Almost surely, 2^16382225 is an apocalyptic number.

It is an amenable number.

16382225 is a deficient number, since it is larger than the sum of its proper divisors (3931765).

16382225 is an equidigital number, since it uses as much as digits as its factorization.

16382225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655299 (or 655294 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 16382225 is about 4047.4961395905. The cubic root of 16382225 is about 253.9749959887.

The spelling of 16382225 in words is "sixteen million, three hundred eighty-two thousand, two hundred twenty-five".