2647225 has 18 divisors (see below), whose sum is σ = 3820254. Its totient is φ = 1814400.

The previous prime is 2647193. The next prime is 2647243. The reversal of 2647225 is 5227462.

It can be written as a sum of positive squares in 3 ways, for example, as 254016 + 2393209 = 504^2 + 1547^2 .

It is not a de Polignac number, because 2647225 - 2⁵ = 2647193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2647193 and 2647202.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 145 + ... + 2305.

2^2647225 is an apocalyptic number.

2647225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2647225 is a deficient number, since it is larger than the sum of its proper divisors (1173029).

2647225 is a wasteful number, since it uses less digits than its factorization.

2647225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185 (or 2173 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 2647225 is about 1627.0295018837. The cubic root of 2647225 is about 138.3344300811.

The spelling of 2647225 in words is "two million, six hundred forty-seven thousand, two hundred twenty-five".