54113510616505 has 8 divisors (see below), whose sum is σ = 64942003961352. Its totient is φ = 43286947678848.

The previous prime is 54113510616479. The next prime is 54113510616509. The reversal of 54113510616505 is 50561601531145.

It can be written as a sum of positive squares in 4 ways, for example, as 1794964896169 + 52318545720336 = 1339763^2 + 7233156^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54113510616505 - 2⁷ = 54113510616377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54113510616509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482540124 + ... + 482652253.

It is an arithmetic number, because the mean of its divisors is an integer number (8117750495169).

Almost surely, 2^{54113510616505} is an apocalyptic number.

It is an amenable number.

54113510616505 is a deficient number, since it is larger than the sum of its proper divisors (10828493344847).

54113510616505 is a wasteful number, since it uses less digits than its factorization.

54113510616505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965203595.

The product of its (nonzero) digits is 270000, while the sum is 43.

The spelling of 54113510616505 in words is "fifty-four trillion, one hundred thirteen billion, five hundred ten million, six hundred sixteen thousand, five hundred five".