52780252805005 has 12 divisors (see below), whose sum is σ = 69617589651036. Its totient is φ = 38385638403200.

The previous prime is 52780252804999. The next prime is 52780252805039. The reversal of 52780252805005 is 50050825208725.

It can be written as a sum of positive squares in 2 ways, for example, as 41677082496841 + 11103170308164 = 6455779^2 + 3332142^2 .

It is not a de Polignac number, because 52780252805005 - 2³ = 52780252804997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52780252805005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43620043036 + ... + 43620044245.

It is an arithmetic number, because the mean of its divisors is an integer number (5801465804253).

Almost surely, 2^{52780252805005} is an apocalyptic number.

52780252805005 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52780252805005 is a deficient number, since it is larger than the sum of its proper divisors (16837336846031).

52780252805005 is a wasteful number, since it uses less digits than its factorization.

52780252805005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87240087308 (or 87240087297 counting only the distinct ones).

The product of its (nonzero) digits is 2240000, while the sum is 49.

The spelling of 52780252805005 in words is "fifty-two trillion, seven hundred eighty billion, two hundred fifty-two million, eight hundred five thousand, five".