53538671717 has 2 divisors, whose sum is σ = 53538671718. Its totient is φ = 53538671716.

The previous prime is 53538671689. The next prime is 53538671803. The reversal of 53538671717 is 71717683535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35753515396 + 17785156321 = 189086^2 + 133361^2 .

It is a cyclic number.

It is not a de Polignac number, because 53538671717 - 2¹² = 53538667621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53538671917) 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, 26769335858 + 26769335859.

It is an arithmetic number, because the mean of its divisors is an integer number (26769335859).

Almost surely, 2^53538671717 is an apocalyptic number.

It is an amenable number.

53538671717 is a deficient number, since it is larger than the sum of its proper divisors (1).

53538671717 is an equidigital number, since it uses as much as digits as its factorization.

53538671717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3704400, while the sum is 53.

The spelling of 53538671717 in words is "fifty-three billion, five hundred thirty-eight million, six hundred seventy-one thousand, seven hundred seventeen".