3505565 has 16 divisors (see below), whose sum is σ = 4939392. Its totient is φ = 2337984.

The previous prime is 3505559. The next prime is 3505571. The reversal of 3505565 is 5655053.

It is an interprime number because it is at equal distance from previous prime (3505559) and next prime (3505571).

It is a cyclic number.

It is not a de Polignac number, because 3505565 - 2⁶ = 3505501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59 + ... + 2648.

It is an arithmetic number, because the mean of its divisors is an integer number (308712).

Almost surely, 2^3505565 is an apocalyptic number.

3505565 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3505565 is a deficient number, since it is larger than the sum of its proper divisors (1433827).

3505565 is a wasteful number, since it uses less digits than its factorization.

3505565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2756.

The product of its (nonzero) digits is 11250, while the sum is 29.

The square root of 3505565 is about 1872.3154114625. The cubic root of 3505565 is about 151.9098755903.

The spelling of 3505565 in words is "three million, five hundred five thousand, five hundred sixty-five".