53139617826593 has 4 divisors (see below), whose sum is σ = 54435706066308. Its totient is φ = 51843529586880.

The previous prime is 53139617826583. The next prime is 53139617826611. The reversal of 53139617826593 is 39562871693135.

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 30845894072464 + 22293723754129 = 5553908^2 + 4721623^2 .

It is a cyclic number.

It is not a de Polignac number, because 53139617826593 - 2¹² = 53139617822497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53139617826523) 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, 648044119796 + ... + 648044119877.

It is an arithmetic number, because the mean of its divisors is an integer number (13608926516577).

Almost surely, 2^{53139617826593} is an apocalyptic number.

It is an amenable number.

53139617826593 is a deficient number, since it is larger than the sum of its proper divisors (1296088239715).

53139617826593 is a wasteful number, since it uses less digits than its factorization.

53139617826593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296088239714.

The product of its digits is 220449600, while the sum is 68.

The spelling of 53139617826593 in words is "fifty-three trillion, one hundred thirty-nine billion, six hundred seventeen million, eight hundred twenty-six thousand, five hundred ninety-three".