4025225 has 6 divisors (see below), whose sum is σ = 4991310. Its totient is φ = 3220160.

The previous prime is 4025179. The next prime is 4025227. The reversal of 4025225 is 5225204.

4025225 = T₃₇₆ + T₃₇₇ + ... + T₄₂₅.

It can be written as a sum of positive squares in 3 ways, for example, as 41209 + 3984016 = 203^2 + 1996^2 .

It is not a de Polignac number, because 4025225 - 2¹⁴ = 4008841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4025197 and 4025206.

It is not an unprimeable number, because it can be changed into a prime (4025227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80480 + ... + 80529.

It is an arithmetic number, because the mean of its divisors is an integer number (831885).

Almost surely, 2^4025225 is an apocalyptic number.

It is an amenable number.

4025225 is a deficient number, since it is larger than the sum of its proper divisors (966085).

4025225 is a wasteful number, since it uses less digits than its factorization.

4025225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161019 (or 161014 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 4025225 is about 2006.2963390287. The cubic root of 4025225 is about 159.0730911399.

The spelling of 4025225 in words is "four million, twenty-five thousand, two hundred twenty-five".