53231555305 has 4 divisors (see below), whose sum is σ = 63877866372. Its totient is φ = 42585244240.

The previous prime is 53231555203. The next prime is 53231555323. The reversal of 53231555305 is 50355513235.

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 30696441616 + 22535113689 = 175204^2 + 150117^2 .

It is not a de Polignac number, because 53231555305 - 2¹⁵ = 53231522537 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5323155526 + ... + 5323155535.

It is an arithmetic number, because the mean of its divisors is an integer number (15969466593).

Almost surely, 2^53231555305 is an apocalyptic number.

It is an amenable number.

53231555305 is a deficient number, since it is larger than the sum of its proper divisors (10646311067).

53231555305 is a wasteful number, since it uses less digits than its factorization.

53231555305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10646311066.

The product of its (nonzero) digits is 168750, while the sum is 37.

The spelling of 53231555305 in words is "fifty-three billion, two hundred thirty-one million, five hundred fifty-five thousand, three hundred five".