16567225 has 6 divisors (see below), whose sum is σ = 20543390. Its totient is φ = 13253760.

The previous prime is 16567219. The next prime is 16567247. The reversal of 16567225 is 52276561.

It can be written as a sum of positive squares in 3 ways, for example, as 1982464 + 14584761 = 1408^2 + 3819^2 .

It is not a de Polignac number, because 16567225 - 2⁵ = 16567193 is a prime.

It is a nialpdrome in base 16.

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, 331320 + ... + 331369.

Almost surely, 2^16567225 is an apocalyptic number.

It is an amenable number.

16567225 is a deficient number, since it is larger than the sum of its proper divisors (3976165).

16567225 is an equidigital number, since it uses as much as digits as its factorization.

16567225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662699 (or 662694 counting only the distinct ones).

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

The square root of 16567225 is about 4070.2856165139. The cubic root of 16567225 is about 254.9274431529.

The spelling of 16567225 in words is "sixteen million, five hundred sixty-seven thousand, two hundred twenty-five".