4251225 has 24 divisors (see below), whose sum is σ = 7669152. Its totient is φ = 2060800.

The previous prime is 4251223. The next prime is 4251239. The reversal of 4251225 is 5221524.

It is a happy number.

It is not a de Polignac number, because 4251225 - 2¹ = 4251223 is a prime.

4251225 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4251223) 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 23 ways as a sum of consecutive naturals, for example, 1752 + ... + 3401.

It is an arithmetic number, because the mean of its divisors is an integer number (319548).

Almost surely, 2^4251225 is an apocalyptic number.

It is an amenable number.

4251225 is a deficient number, since it is larger than the sum of its proper divisors (3417927).

4251225 is a wasteful number, since it uses less digits than its factorization.

4251225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5177 (or 5172 counting only the distinct ones).

The product of its digits is 800, while the sum is 21.

The square root of 4251225 is about 2061.8498975435. The cubic root of 4251225 is about 161.9961514099.

Adding to 4251225 its reverse (5221524), we get a palindrome (9472749).

Subtracting 4251225 from its reverse (5221524), we obtain a cube (970299 = 99³).

The spelling of 4251225 in words is "four million, two hundred fifty-one thousand, two hundred twenty-five".