53086399661 has 2 divisors, whose sum is σ = 53086399662. Its totient is φ = 53086399660.

The previous prime is 53086399643. The next prime is 53086399693. The reversal of 53086399661 is 16699368035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43652162761 + 9434236900 = 208931^2 + 97130^2 .

It is a cyclic number.

It is not a de Polignac number, because 53086399661 - 2¹⁰ = 53086398637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53086399597 and 53086399606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53086390661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26543199830 + 26543199831.

It is an arithmetic number, because the mean of its divisors is an integer number (26543199831).

Almost surely, 2^53086399661 is an apocalyptic number.

It is an amenable number.

53086399661 is a deficient number, since it is larger than the sum of its proper divisors (1).

53086399661 is an equidigital number, since it uses as much as digits as its factorization.

53086399661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6298560, while the sum is 56.

The spelling of 53086399661 in words is "fifty-three billion, eighty-six million, three hundred ninety-nine thousand, six hundred sixty-one".