542533 has 2 divisors, whose sum is σ = 542534. Its totient is φ = 542532.

The previous prime is 542519. The next prime is 542537. The reversal of 542533 is 335245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 492804 + 49729 = 702^2 + 223^2 .

It is a cyclic number.

It is not a de Polignac number, because 542533 - 2⁹ = 542021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271266 + 271267.

It is an arithmetic number, because the mean of its divisors is an integer number (271267).

2⁵⁴²⁵³³ is an apocalyptic number.

It is an amenable number.

542533 is a deficient number, since it is larger than the sum of its proper divisors (1).

542533 is an equidigital number, since it uses as much as digits as its factorization.

542533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 22.

The square root of 542533 is about 736.5683946518. The cubic root of 542533 is about 81.5596562232.

Adding to 542533 its reverse (335245), we get a palindrome (877778).

The spelling of 542533 in words is "five hundred forty-two thousand, five hundred thirty-three".