52105311509 has 2 divisors, whose sum is σ = 52105311510. Its totient is φ = 52105311508.

The previous prime is 52105311487. The next prime is 52105311527. The reversal of 52105311509 is 90511350125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49962084484 + 2143227025 = 223522^2 + 46295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52105311509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52105311809) by changing a digit.

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 as a sum of consecutive naturals, namely, 26052655754 + 26052655755.

It is an arithmetic number, because the mean of its divisors is an integer number (26052655755).

Almost surely, 2^52105311509 is an apocalyptic number.

It is an amenable number.

52105311509 is a deficient number, since it is larger than the sum of its proper divisors (1).

52105311509 is an equidigital number, since it uses as much as digits as its factorization.

52105311509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6750, while the sum is 32.

The spelling of 52105311509 in words is "fifty-two billion, one hundred five million, three hundred eleven thousand, five hundred nine".