755565 has 16 divisors (see below), whose sum is σ = 1280448. Its totient is φ = 379136.

The previous prime is 755561. The next prime is 755567. The reversal of 755565 is 565557.

It is a cyclic number.

It is not a de Polignac number, because 755565 - 2² = 755561 is a prime.

755565 is a lucky number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (755561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1227 + ... + 1736.

It is an arithmetic number, because the mean of its divisors is an integer number (80028).

2⁷⁵⁵⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

755565 is a deficient number, since it is larger than the sum of its proper divisors (524883).

755565 is a wasteful number, since it uses less digits than its factorization.

755565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988.

The product of its digits is 26250, while the sum is 33.

The square root of 755565 is about 869.2324200120. The cubic root of 755565 is about 91.0801933675.

The spelling of 755565 in words is "seven hundred fifty-five thousand, five hundred sixty-five".