542543530 has 8 divisors (see below), whose sum is σ = 976578372. Its totient is φ = 217017408.

The previous prime is 542543509. The next prime is 542543531. The reversal of 542543530 is 35345245.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 441882441 + 100661089 = 21021^2 + 10033^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 542543492 and 542543501.

It is not an unprimeable number, because it can be changed into a prime (542543531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27127167 + ... + 27127186.

Almost surely, 2^542543530 is an apocalyptic number.

542543530 is a deficient number, since it is larger than the sum of its proper divisors (434034842).

542543530 is a wasteful number, since it uses less digits than its factorization.

542543530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54254360.

The product of its (nonzero) digits is 36000, while the sum is 31.

The square root of 542543530 is about 23292.5638348379. The cubic root of 542543530 is about 815.6018388240.

Adding to 542543530 its reverse (35345245), we get a palindrome (577888775).

The spelling of 542543530 in words is "five hundred forty-two million, five hundred forty-three thousand, five hundred thirty".