3528025 has 6 divisors (see below), whose sum is σ = 4374782. Its totient is φ = 2822400.

The previous prime is 3528011. The next prime is 3528029. The reversal of 3528025 is 5208253.

It can be written as a sum of positive squares in 3 ways, for example, as 8649 + 3519376 = 93^2 + 1876^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3528025 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 141121 = 3528025 / (3 + 5 + 2 + 8 + 0 + 2 + 5).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3528029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70536 + ... + 70585.

Almost surely, 2^3528025 is an apocalyptic number.

It is an amenable number.

3528025 is a deficient number, since it is larger than the sum of its proper divisors (846757).

3528025 is a wasteful number, since it uses less digits than its factorization.

3528025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141131 (or 141126 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 3528025 is about 1878.3037560523. The cubic root of 3528025 is about 152.2336118030.

The spelling of 3528025 in words is "three million, five hundred twenty-eight thousand, twenty-five".