16712225 has 12 divisors (see below), whose sum is σ = 21115836. Its totient is φ = 13116480.

The previous prime is 16712221. The next prime is 16712243. The reversal of 16712225 is 52221761.

It can be written as a sum of positive squares in 6 ways, for example, as 73984 + 16638241 = 272^2 + 4079^2 .

It is not a de Polignac number, because 16712225 - 2² = 16712221 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 16712194 and 16712203.

It is not an unprimeable number, because it can be changed into a prime (16712221) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4982 + ... + 7631.

It is an arithmetic number, because the mean of its divisors is an integer number (1759653).

Almost surely, 2^16712225 is an apocalyptic number.

It is an amenable number.

16712225 is a deficient number, since it is larger than the sum of its proper divisors (4403611).

16712225 is a wasteful number, since it uses less digits than its factorization.

16712225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12676 (or 12671 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 16712225 is about 4088.0588303008. The cubic root of 16712225 is about 255.6690109200.

Adding to 16712225 its reverse (52221761), we get a palindrome (68933986).

The spelling of 16712225 in words is "sixteen million, seven hundred twelve thousand, two hundred twenty-five".