54351115351543 has 4 divisors (see below), whose sum is σ = 54697300799800. Its totient is φ = 54004929903288.

The previous prime is 54351115351541. The next prime is 54351115351553. The reversal of 54351115351543 is 34515351115345.

It is a happy number.

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 54351115351543 - 2¹ = 54351115351541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54351115351493 and 54351115351502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54351115351541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173092723893 + ... + 173092724206.

It is an arithmetic number, because the mean of its divisors is an integer number (13674325199950).

Almost surely, 2^{54351115351543} is an apocalyptic number.

54351115351543 is a deficient number, since it is larger than the sum of its proper divisors (346185448257).

54351115351543 is a wasteful number, since it uses less digits than its factorization.

54351115351543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346185448256.

The product of its digits is 1350000, while the sum is 46.

Adding to 54351115351543 its reverse (34515351115345), we get a palindrome (88866466466888).

The spelling of 54351115351543 in words is "fifty-four trillion, three hundred fifty-one billion, one hundred fifteen million, three hundred fifty-one thousand, five hundred forty-three".