505535 has 4 divisors (see below), whose sum is σ = 606648. Its totient is φ = 404424.

The previous prime is 505523. The next prime is 505537. The reversal of 505535 is 535505.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 535505 = 5 ⋅107101.

It is a cyclic number.

It is not a de Polignac number, because 505535 - 2⁸ = 505279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50549 + ... + 50558.

It is an arithmetic number, because the mean of its divisors is an integer number (151662).

2⁵⁰⁵⁵³⁵ is an apocalyptic number.

505535 is a deficient number, since it is larger than the sum of its proper divisors (101113).

505535 is a wasteful number, since it uses less digits than its factorization.

505535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101112.

The product of its (nonzero) digits is 1875, while the sum is 23.

The square root of 505535 is about 711.0098452202. The cubic root of 505535 is about 79.6618539796.

The spelling of 505535 in words is "five hundred five thousand, five hundred thirty-five".