3557025 has 18 divisors (see below), whose sum is σ = 6371430. Its totient is φ = 1896960.

The previous prime is 3557023. The next prime is 3557039. The reversal of 3557025 is 5207553.

It can be written as a sum of positive squares in 3 ways, for example, as 7569 + 3549456 = 87^2 + 1884^2 .

It is not a de Polignac number, because 3557025 - 2¹ = 3557023 is a prime.

3557025 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3557025.

It is not an unprimeable number, because it can be changed into a prime (3557023) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7680 + ... + 8129.

Almost surely, 2^3557025 is an apocalyptic number.

It is an amenable number.

3557025 is a deficient number, since it is larger than the sum of its proper divisors (2814405).

3557025 is a wasteful number, since it uses less digits than its factorization.

3557025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15825 (or 15817 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 3557025 is about 1886.0076882134. The cubic root of 3557025 is about 152.6495889527.

The spelling of 3557025 in words is "three million, five hundred fifty-seven thousand, twenty-five".