543520423 has 4 divisors (see below), whose sum is σ = 547120048. Its totient is φ = 539920800.

The previous prime is 543520421. The next prime is 543520457. The reversal of 543520423 is 324025345.

543520423 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.

It is a cyclic number.

It is not a de Polignac number, because 543520423 - 2¹ = 543520421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 543520391 and 543520400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543520421) 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, 1799586 + ... + 1799887.

It is an arithmetic number, because the mean of its divisors is an integer number (136780012).

Almost surely, 2^543520423 is an apocalyptic number.

543520423 is a deficient number, since it is larger than the sum of its proper divisors (3599625).

543520423 is a wasteful number, since it uses less digits than its factorization.

543520423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3599624.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 543520423 is about 23313.5244654256. The cubic root of 543520423 is about 816.0910640833.

Adding to 543520423 its reverse (324025345), we get a palindrome (867545768).

The spelling of 543520423 in words is "five hundred forty-three million, five hundred twenty thousand, four hundred twenty-three".