4257625 has 8 divisors (see below), whose sum is σ = 5313672. Its totient is φ = 3406000.

The previous prime is 4257613. The next prime is 4257641. The reversal of 4257625 is 5267524.

It can be written as a sum of positive squares in 4 ways, for example, as 1364224 + 2893401 = 1168^2 + 1701^2 .

It is not a de Polignac number, because 4257625 - 2⁵ = 4257593 is a prime.

It is a d-powerful number, because it can be written as 4 + 2¹⁰ + 5 + 7 + 6⁶ + 2²² + 5⁶ .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16906 + ... + 17155.

It is an arithmetic number, because the mean of its divisors is an integer number (664209).

Almost surely, 2^4257625 is an apocalyptic number.

It is an amenable number.

4257625 is a deficient number, since it is larger than the sum of its proper divisors (1056047).

4257625 is an equidigital number, since it uses as much as digits as its factorization.

4257625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34076 (or 34066 counting only the distinct ones).

The product of its digits is 16800, while the sum is 31.

The square root of 4257625 is about 2063.4013182122. The cubic root of 4257625 is about 162.0774029341.

The spelling of 4257625 in words is "four million, two hundred fifty-seven thousand, six hundred twenty-five".