53801730305 has 16 divisors (see below), whose sum is σ = 68390061264. Its totient is φ = 40491632640.

The previous prime is 53801730287. The next prime is 53801730347. The reversal of 53801730305 is 50303710835.

It is a Cunningham number, because it is equal to 231952²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 1 + 53801730304 = 1^2 + 231952^2 .

It is a de Polignac number, because none of the positive numbers 2^k-53801730305 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55139 + ... + 332631.

It is an arithmetic number, because the mean of its divisors is an integer number (4274378829).

Almost surely, 2^53801730305 is an apocalyptic number.

It is an amenable number.

53801730305 is a deficient number, since it is larger than the sum of its proper divisors (14588330959).

53801730305 is a wasteful number, since it uses less digits than its factorization.

53801730305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279796.

The product of its (nonzero) digits is 37800, while the sum is 35.

The spelling of 53801730305 in words is "fifty-three billion, eight hundred one million, seven hundred thirty thousand, three hundred five".