53311717 has 2 divisors, whose sum is σ = 53311718. Its totient is φ = 53311716.

The previous prime is 53311691. The next prime is 53311733. The reversal of 53311717 is 71711335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52794756 + 516961 = 7266^2 + 719^2 .

It is a cyclic number.

It is not a de Polignac number, because 53311717 - 2¹⁵ = 53278949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53311757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26655858 + 26655859.

It is an arithmetic number, because the mean of its divisors is an integer number (26655859).

Almost surely, 2^53311717 is an apocalyptic number.

It is an amenable number.

53311717 is a deficient number, since it is larger than the sum of its proper divisors (1).

53311717 is an equidigital number, since it uses as much as digits as its factorization.

53311717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2205, while the sum is 28.

The square root of 53311717 is about 7301.4873142395. The cubic root of 53311717 is about 376.3635503091.

The spelling of 53311717 in words is "fifty-three million, three hundred eleven thousand, seven hundred seventeen".