523535 has 4 divisors (see below), whose sum is σ = 628248. Its totient is φ = 418824.

The previous prime is 523519. The next prime is 523541. The reversal of 523535 is 535325.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 523535 - 2⁴ = 523519 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 523535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52349 + ... + 52358.

It is an arithmetic number, because the mean of its divisors is an integer number (157062).

2⁵²³⁵³⁵ is an apocalyptic number.

523535 is a deficient number, since it is larger than the sum of its proper divisors (104713).

523535 is a wasteful number, since it uses less digits than its factorization.

523535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104712.

The product of its digits is 2250, while the sum is 23.

The square root of 523535 is about 723.5571850241. The cubic root of 523535 is about 80.5963251593.

The spelling of 523535 in words is "five hundred twenty-three thousand, five hundred thirty-five".