3256565 has 8 divisors (see below), whose sum is σ = 4208568. Its totient is φ = 2404800.

The previous prime is 3256553. The next prime is 3256567. The reversal of 3256565 is 5656523.

It can be written as a sum of positive squares in 4 ways, for example, as 20164 + 3236401 = 142^2 + 1799^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3256565 - 2⁴ = 3256549 is a prime.

It is an alternating number because its digits alternate between odd and even.

3256565 is a modest number, since divided by 6565 gives 325 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3256567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24986 + ... + 25115.

It is an arithmetic number, because the mean of its divisors is an integer number (526071).

Almost surely, 2^3256565 is an apocalyptic number.

It is an amenable number.

3256565 is a deficient number, since it is larger than the sum of its proper divisors (952003).

3256565 is a wasteful number, since it uses less digits than its factorization.

3256565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50119.

The product of its digits is 27000, while the sum is 32.

The square root of 3256565 is about 1804.5955225479. The cubic root of 3256565 is about 148.2244737068.

The spelling of 3256565 in words is "three million, two hundred fifty-six thousand, five hundred sixty-five".