54117241317565 has 4 divisors (see below), whose sum is σ = 64940689581084. Its totient is φ = 43293793054048.

The previous prime is 54117241317563. The next prime is 54117241317613. The reversal of 54117241317565 is 56571314271145.

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 17263867110361 + 36853374207204 = 4154981^2 + 6070698^2 .

It is a cyclic number.

It is not a de Polignac number, because 54117241317565 - 2¹ = 54117241317563 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 (54117241317563) 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, 5411724131752 + ... + 5411724131761.

It is an arithmetic number, because the mean of its divisors is an integer number (16235172395271).

Almost surely, 2^{54117241317565} is an apocalyptic number.

It is an amenable number.

54117241317565 is a deficient number, since it is larger than the sum of its proper divisors (10823448263519).

54117241317565 is a wasteful number, since it uses less digits than its factorization.

54117241317565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10823448263518.

The product of its digits is 3528000, while the sum is 52.

The spelling of 54117241317565 in words is "fifty-four trillion, one hundred seventeen billion, two hundred forty-one million, three hundred seventeen thousand, five hundred sixty-five".