542432425541 has 4 divisors (see below), whose sum is σ = 543238417932. Its totient is φ = 541626433152.

The previous prime is 542432425531. The next prime is 542432425543. The reversal of 542432425541 is 145524234245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 175620503041 + 366811922500 = 419071^2 + 605650^2 .

It is a cyclic number.

It is not a de Polignac number, because 542432425541 - 2³⁸ = 267554518597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542432425543) 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, 402995186 + ... + 402996531.

It is an arithmetic number, because the mean of its divisors is an integer number (135809604483).

Almost surely, 2^542432425541 is an apocalyptic number.

It is an amenable number.

542432425541 is a deficient number, since it is larger than the sum of its proper divisors (805992391).

542432425541 is an equidigital number, since it uses as much as digits as its factorization.

542432425541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805992390.

The product of its digits is 768000, while the sum is 41.

Adding to 542432425541 its reverse (145524234245), we get a palindrome (687956659786).

The spelling of 542432425541 in words is "five hundred forty-two billion, four hundred thirty-two million, four hundred twenty-five thousand, five hundred forty-one".