53520443537513 has 2 divisors, whose sum is σ = 53520443537514. Its totient is φ = 53520443537512.

The previous prime is 53520443537501. The next prime is 53520443537551. The reversal of 53520443537513 is 31573534402535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27732409548649 + 25788033988864 = 5266157^2 + 5078192^2 .

It is a cyclic number.

It is not a de Polignac number, because 53520443537513 - 2⁴ = 53520443537497 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 (53520443537413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26760221768756 + 26760221768757.

It is an arithmetic number, because the mean of its divisors is an integer number (26760221768757).

Almost surely, 2^{53520443537513} is an apocalyptic number.

It is an amenable number.

53520443537513 is a deficient number, since it is larger than the sum of its proper divisors (1).

53520443537513 is an equidigital number, since it uses as much as digits as its factorization.

53520443537513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340000, while the sum is 50.

The spelling of 53520443537513 in words is "fifty-three trillion, five hundred twenty billion, four hundred forty-three million, five hundred thirty-seven thousand, five hundred thirteen".