4225525 has 12 divisors (see below), whose sum is σ = 5275332. Its totient is φ = 3357440.

The previous prime is 4225523. The next prime is 4225541. The reversal of 4225525 is 5255224.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 531441 + 3694084 = 729^2 + 1922^2 .

It is not a de Polignac number, because 4225525 - 2¹ = 4225523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4225525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4225523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3837 + ... + 4813.

It is an arithmetic number, because the mean of its divisors is an integer number (439611).

Almost surely, 2^4225525 is an apocalyptic number.

It is an amenable number.

4225525 is a deficient number, since it is larger than the sum of its proper divisors (1049807).

4225525 is a wasteful number, since it uses less digits than its factorization.

4225525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160 (or 1155 counting only the distinct ones).

The product of its digits is 4000, while the sum is 25.

The square root of 4225525 is about 2055.6081825095. The cubic root of 4225525 is about 161.6690520544.

The spelling of 4225525 in words is "four million, two hundred twenty-five thousand, five hundred twenty-five".