542401131533 has 4 divisors (see below), whose sum is σ = 547771439868. Its totient is φ = 537030823200.

The previous prime is 542401131527. The next prime is 542401131541. The reversal of 542401131533 is 335131104245.

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 362792996329 + 179608135204 = 602323^2 + 423802^2 .

It is a cyclic number.

It is not a de Polignac number, because 542401131533 - 2³² = 538106164237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 542401131533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542401131733) 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, 2685154016 + ... + 2685154217.

It is an arithmetic number, because the mean of its divisors is an integer number (136942859967).

Almost surely, 2^542401131533 is an apocalyptic number.

It is an amenable number.

542401131533 is a deficient number, since it is larger than the sum of its proper divisors (5370308335).

542401131533 is a wasteful number, since it uses less digits than its factorization.

542401131533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5370308334.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 542401131533 its reverse (335131104245), we get a palindrome (877532235778).

The spelling of 542401131533 in words is "five hundred forty-two billion, four hundred one million, one hundred thirty-one thousand, five hundred thirty-three".