53520099917 has 2 divisors, whose sum is σ = 53520099918. Its totient is φ = 53520099916.

The previous prime is 53520099827. The next prime is 53520099929. The reversal of 53520099917 is 71999002535.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43191646276 + 10328453641 = 207826^2 + 101629^2 .

It is a cyclic number.

It is not a de Polignac number, because 53520099917 - 2²² = 53515905613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53520099967) 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, 26760049958 + 26760049959.

It is an arithmetic number, because the mean of its divisors is an integer number (26760049959).

Almost surely, 2^53520099917 is an apocalyptic number.

It is an amenable number.

53520099917 is a deficient number, since it is larger than the sum of its proper divisors (1).

53520099917 is an equidigital number, since it uses as much as digits as its factorization.

53520099917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 765450, while the sum is 50.

The spelling of 53520099917 in words is "fifty-three billion, five hundred twenty million, ninety-nine thousand, nine hundred seventeen".