549533 has 2 divisors, whose sum is σ = 549534. Its totient is φ = 549532.

The previous prime is 549517. The next prime is 549547. The reversal of 549533 is 335945.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 458329 + 91204 = 677^2 + 302^2 .

It is a cyclic number.

It is not a de Polignac number, because 549533 - 2⁴ = 549517 is a prime.

It is a d-powerful number, because it can be written as 5³ + 4⁷ + 5³ + 9³ + 3⁶ + 3¹² .

It is a junction number, because it is equal to n+sod(n) for n = 549496 and 549505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274766 + 274767.

It is an arithmetic number, because the mean of its divisors is an integer number (274767).

2⁵⁴⁹⁵³³ is an apocalyptic number.

It is an amenable number.

549533 is a deficient number, since it is larger than the sum of its proper divisors (1).

549533 is an equidigital number, since it uses as much as digits as its factorization.

549533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 29.

The square root of 549533 is about 741.3049305111. The cubic root of 549533 is about 81.9089312189.

The spelling of 549533 in words is "five hundred forty-nine thousand, five hundred thirty-three".