54243535541 has 4 divisors (see below), whose sum is σ = 58416115212. Its totient is φ = 50070955872.

The previous prime is 54243535517. The next prime is 54243535561. The reversal of 54243535541 is 14553534245.

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 30579866641 + 23663668900 = 174871^2 + 153830^2 .

It is a cyclic number.

It is not a de Polignac number, because 54243535541 - 2¹⁸ = 54243273397 is a prime.

It is a super-2 number, since 2×54243535541² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54243535561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2086289816 + ... + 2086289841.

It is an arithmetic number, because the mean of its divisors is an integer number (14604028803).

Almost surely, 2^54243535541 is an apocalyptic number.

It is an amenable number.

54243535541 is a deficient number, since it is larger than the sum of its proper divisors (4172579671).

54243535541 is a wasteful number, since it uses less digits than its factorization.

54243535541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4172579670.

The product of its digits is 720000, while the sum is 41.

The spelling of 54243535541 in words is "fifty-four billion, two hundred forty-three million, five hundred thirty-five thousand, five hundred forty-one".