513554555264017 has 4 divisors (see below), whose sum is σ = 513580083670836. Its totient is φ = 513529026857200.

The previous prime is 513554555263979. The next prime is 513554555264033. The reversal of 513554555264017 is 710462555455315.

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 201385871720401 + 312168683543616 = 14191049^2 + 17668296^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513554555264017 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513554555264087) 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, 12764173234 + ... + 12764213467.

It is an arithmetic number, because the mean of its divisors is an integer number (128395020917709).

Almost surely, 2^{513554555264017} is an apocalyptic number.

It is an amenable number.

513554555264017 is a deficient number, since it is larger than the sum of its proper divisors (25528406819).

513554555264017 is a wasteful number, since it uses less digits than its factorization.

513554555264017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25528406818.

The product of its (nonzero) digits is 63000000, while the sum is 58.

The spelling of 513554555264017 in words is "five hundred thirteen trillion, five hundred fifty-four billion, five hundred fifty-five million, two hundred sixty-four thousand, seventeen".