533381 has 4 divisors (see below), whose sum is σ = 538764. Its totient is φ = 528000.

The previous prime is 533371. The next prime is 533389. The reversal of 533381 is 183335.

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

It can be written as a sum of positive squares in 2 ways, for example, as 312481 + 220900 = 559^2 + 470^2 .

It is a cyclic number.

It is not a de Polignac number, because 533381 - 2⁶ = 533317 is a prime.

It is a super-2 number, since 2×533381² = 568990582322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2540 + ... + 2741.

It is an arithmetic number, because the mean of its divisors is an integer number (134691).

2⁵³³³⁸¹ is an apocalyptic number.

It is an amenable number.

533381 is a deficient number, since it is larger than the sum of its proper divisors (5383).

533381 is a wasteful number, since it uses less digits than its factorization.

533381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5382.

The product of its digits is 1080, while the sum is 23.

The square root of 533381 is about 730.3293777468. The cubic root of 533381 is about 81.0984425215.

The spelling of 533381 in words is "five hundred thirty-three thousand, three hundred eighty-one".