52521260609 has 2 divisors, whose sum is σ = 52521260610. Its totient is φ = 52521260608.

The previous prime is 52521260551. The next prime is 52521260641. The reversal of 52521260609 is 90606212525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49263134209 + 3258126400 = 221953^2 + 57080^2 .

It is a cyclic number.

It is not a de Polignac number, because 52521260609 - 2²⁰ = 52520212033 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (52521260669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26260630304 + 26260630305.

It is an arithmetic number, because the mean of its divisors is an integer number (26260630305).

Almost surely, 2^52521260609 is an apocalyptic number.

It is an amenable number.

52521260609 is a deficient number, since it is larger than the sum of its proper divisors (1).

52521260609 is an equidigital number, since it uses as much as digits as its factorization.

52521260609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 52521260609 in words is "fifty-two billion, five hundred twenty-one million, two hundred sixty thousand, six hundred nine".