535543 has 8 divisors (see below), whose sum is σ = 565200. Its totient is φ = 506688.

The previous prime is 535529. The next prime is 535547. The reversal of 535543 is 345535.

It is a happy number.

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

It is not a de Polignac number, because 535543 - 2⁵ = 535511 is a prime.

It is a d-powerful number, because it can be written as 5² + 3⁹ + 5⁴ + 5⁸ + 4⁸ + 3¹⁰ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (535547) 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, 1555 + ... + 1867.

It is an arithmetic number, because the mean of its divisors is an integer number (70650).

2⁵³⁵⁵⁴³ is an apocalyptic number.

535543 is a deficient number, since it is larger than the sum of its proper divisors (29657).

535543 is a wasteful number, since it uses less digits than its factorization.

535543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401.

The product of its digits is 4500, while the sum is 25.

The square root of 535543 is about 731.8080349381. The cubic root of 535543 is about 81.2078692819.

The spelling of 535543 in words is "five hundred thirty-five thousand, five hundred forty-three".