542456533 has 4 divisors (see below), whose sum is σ = 542511180. Its totient is φ = 542401888.

The previous prime is 542456521. The next prime is 542456549. The reversal of 542456533 is 335654245.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 459973809 + 82482724 = 21447^2 + 9082^2 .

It is a cyclic number.

It is not a de Polignac number, because 542456533 - 2⁵ = 542456501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 542456492 and 542456501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542456333) 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, 7768 + ... + 33841.

It is an arithmetic number, because the mean of its divisors is an integer number (135627795).

Almost surely, 2^542456533 is an apocalyptic number.

It is an amenable number.

542456533 is a deficient number, since it is larger than the sum of its proper divisors (54647).

542456533 is a wasteful number, since it uses less digits than its factorization.

542456533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54646.

The product of its digits is 216000, while the sum is 37.

The square root of 542456533 is about 23290.6962755517. The cubic root of 542456533 is about 815.5582425028.

The spelling of 542456533 in words is "five hundred forty-two million, four hundred fifty-six thousand, five hundred thirty-three".