3656025 has 18 divisors (see below), whose sum is σ = 6548750. Its totient is φ = 1949760.

The previous prime is 3656017. The next prime is 3656033. The reversal of 3656025 is 5206563.

3656025 is a `hidden beast` number, since 3 + 656 + 0 + 2 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (3656017) and next prime (3656033).

It can be written as a sum of positive squares in 3 ways, for example, as 318096 + 3337929 = 564^2 + 1827^2 .

It is not a de Polignac number, because 3656025 - 2³ = 3656017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3656025.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 7900 + ... + 8349.

Almost surely, 2^3656025 is an apocalyptic number.

It is an amenable number.

3656025 is a deficient number, since it is larger than the sum of its proper divisors (2892725).

3656025 is a wasteful number, since it uses less digits than its factorization.

3656025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16265 (or 16257 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 3656025 is about 1912.0734818516. The cubic root of 3656025 is about 154.0528435057.

It can be divided in two parts, 36560 and 25, that added together give a triangular number (36585 = T₂₇₀).

The spelling of 3656025 in words is "three million, six hundred fifty-six thousand, twenty-five".