4245025 has 12 divisors (see below), whose sum is σ = 5291452. Its totient is φ = 3378240.

The previous prime is 4245013. The next prime is 4245029. The reversal of 4245025 is 5205424.

It can be written as a sum of positive squares in 6 ways, for example, as 1697809 + 2547216 = 1303^2 + 1596^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4245025 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4244987 and 4245005.

It is not an unprimeable number, because it can be changed into a prime (4245029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6619 + ... + 7231.

Almost surely, 2^4245025 is an apocalyptic number.

It is an amenable number.

4245025 is a deficient number, since it is larger than the sum of its proper divisors (1046427).

4245025 is a wasteful number, since it uses less digits than its factorization.

4245025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900 (or 895 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 4245025 is about 2060.3458447552. The cubic root of 4245025 is about 161.9173611948.

It can be divided in two parts, 4 and 245025, that multiplied together give a square (980100 = 990²).

The spelling of 4245025 in words is "four million, two hundred forty-five thousand, twenty-five".