16576225 has 6 divisors (see below), whose sum is σ = 20554550. Its totient is φ = 13260960.

The previous prime is 16576213. The next prime is 16576237. The reversal of 16576225 is 52267561.

It is an interprime number because it is at equal distance from previous prime (16576213) and next prime (16576237).

It can be written as a sum of positive squares in 3 ways, for example, as 1147041 + 15429184 = 1071^2 + 3928^2 .

It is not a de Polignac number, because 16576225 - 2⁵ = 16576193 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 331500 + ... + 331549.

Almost surely, 2^16576225 is an apocalyptic number.

It is an amenable number.

16576225 is a deficient number, since it is larger than the sum of its proper divisors (3978325).

16576225 is an equidigital number, since it uses as much as digits as its factorization.

16576225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663059 (or 663054 counting only the distinct ones).

The product of its digits is 25200, while the sum is 34.

The square root of 16576225 is about 4071.3910399273. The cubic root of 16576225 is about 254.9735971638.

The spelling of 16576225 in words is "sixteen million, five hundred seventy-six thousand, two hundred twenty-five".