4003525 has 6 divisors (see below), whose sum is σ = 4964402. Its totient is φ = 3202800.

The previous prime is 4003523. The next prime is 4003529. The reversal of 4003525 is 5253004.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 263169 + 3740356 = 513^2 + 1934^2 .

It is not a de Polignac number, because 4003525 - 2¹ = 4003523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4003523) 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, 80046 + ... + 80095.

Almost surely, 2^4003525 is an apocalyptic number.

It is an amenable number.

4003525 is a deficient number, since it is larger than the sum of its proper divisors (960877).

4003525 is a wasteful number, since it uses less digits than its factorization.

4003525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160151 (or 160146 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 4003525 is about 2000.8810559351. The cubic root of 4003525 is about 158.7867214119.

Adding to 4003525 its reverse (5253004), we get a palindrome (9256529).

The spelling of 4003525 in words is "four million, three thousand, five hundred twenty-five".