4025425 has 6 divisors (see below), whose sum is σ = 4991558. Its totient is φ = 3220320.

The previous prime is 4025407. The next prime is 4025429. The reversal of 4025425 is 5245204.

It can be written as a sum of positive squares in 3 ways, for example, as 9409 + 4016016 = 97^2 + 2004^2 .

It is not a de Polignac number, because 4025425 - 2¹⁷ = 3894353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4025396 and 4025405.

It is not an unprimeable number, because it can be changed into a prime (4025429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80484 + ... + 80533.

Almost surely, 2^4025425 is an apocalyptic number.

It is an amenable number.

4025425 is a deficient number, since it is larger than the sum of its proper divisors (966133).

4025425 is a wasteful number, since it uses less digits than its factorization.

4025425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161027 (or 161022 counting only the distinct ones).

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

The square root of 4025425 is about 2006.3461814951. The cubic root of 4025425 is about 159.0757257000.

The spelling of 4025425 in words is "four million, twenty-five thousand, four hundred twenty-five".