53205531999999 has 16 divisors (see below), whose sum is σ = 72741320149344. Its totient is φ = 34571724249600.

The previous prime is 53205531999959. The next prime is 53205532000057. The reversal of 53205531999999 is 99999913550235.

It is not a de Polignac number, because 53205531999999 - 2²⁹ = 53204995129087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53205531999959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209246272 + ... + 209500389.

It is an arithmetic number, because the mean of its divisors is an integer number (4546332509334).

Almost surely, 2^{53205531999999} is an apocalyptic number.

53205531999999 is a deficient number, since it is larger than the sum of its proper divisors (19535788149345).

53205531999999 is a wasteful number, since it uses less digits than its factorization.

53205531999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418747738.

The product of its (nonzero) digits is 1195742250, while the sum is 78.

The spelling of 53205531999999 in words is "fifty-three trillion, two hundred five billion, five hundred thirty-one million, nine hundred ninety-nine thousand, nine hundred ninety-nine".