538533 has 12 divisors (see below), whose sum is σ = 793260. Its totient is φ = 351936.

The previous prime is 538529. The next prime is 538553. The reversal of 538533 is 335835.

538533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 199809 + 338724 = 447^2 + 582^2 .

It is not a de Polignac number, because 538533 - 2² = 538529 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 5 + 3² + 5 + 8³ + 3⁸ + 3¹² .

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 538497 and 538506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88 + ... + 1041.

It is an arithmetic number, because the mean of its divisors is an integer number (66105).

2⁵³⁸⁵³³ is an apocalyptic number.

538533 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

538533 is a deficient number, since it is larger than the sum of its proper divisors (254727).

538533 is a wasteful number, since it uses less digits than its factorization.

538533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188 (or 1185 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 538533 is about 733.8480769206. The cubic root of 538533 is about 81.3587199411.

The spelling of 538533 in words is "five hundred thirty-eight thousand, five hundred thirty-three".