533491 has 4 divisors (see below), whose sum is σ = 609712. Its totient is φ = 457272.

The previous prime is 533459. The next prime is 533509. The reversal of 533491 is 194335.

533491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 194335 = 5 ⋅38867.

It is a cyclic number.

It is not a de Polignac number, because 533491 - 2⁵ = 533459 is a prime.

It is a super-2 number, since 2×533491² = 569225294162, which contains 22 as substring.

It is a Duffinian number.

533491 is a lucky number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (533191) 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, 38100 + ... + 38113.

It is an arithmetic number, because the mean of its divisors is an integer number (152428).

2⁵³³⁴⁹¹ is an apocalyptic number.

533491 is a deficient number, since it is larger than the sum of its proper divisors (76221).

533491 is an equidigital number, since it uses as much as digits as its factorization.

533491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76220.

The product of its digits is 1620, while the sum is 25.

The square root of 533491 is about 730.4046823508. The cubic root of 533491 is about 81.1040171579.

It can be divided in two parts, 533 and 491, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 533491 in words is "five hundred thirty-three thousand, four hundred ninety-one".