52705615549 has 2 divisors, whose sum is σ = 52705615550. Its totient is φ = 52705615548.

The previous prime is 52705615537. The next prime is 52705615637. The reversal of 52705615549 is 94551650725.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36088600900 + 16617014649 = 189970^2 + 128907^2 .

It is a cyclic number.

It is not a de Polignac number, because 52705615549 - 2⁹ = 52705615037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52705615519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26352807774 + 26352807775.

It is an arithmetic number, because the mean of its divisors is an integer number (26352807775).

Almost surely, 2^52705615549 is an apocalyptic number.

It is an amenable number.

52705615549 is a deficient number, since it is larger than the sum of its proper divisors (1).

52705615549 is an equidigital number, since it uses as much as digits as its factorization.

52705615549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890000, while the sum is 49.

The spelling of 52705615549 in words is "fifty-two billion, seven hundred five million, six hundred fifteen thousand, five hundred forty-nine".