53111717 has 2 divisors, whose sum is σ = 53111718. Its totient is φ = 53111716.

The previous prime is 53111701. The next prime is 53111719. The reversal of 53111717 is 71711135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53085796 + 25921 = 7286^2 + 161^2 .

It is a cyclic number.

It is not a de Polignac number, because 53111717 - 2⁴ = 53111701 is a prime.

Together with 53111719, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53111719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26555858 + 26555859.

It is an arithmetic number, because the mean of its divisors is an integer number (26555859).

Almost surely, 2^53111717 is an apocalyptic number.

It is an amenable number.

53111717 is a deficient number, since it is larger than the sum of its proper divisors (1).

53111717 is an equidigital number, since it uses as much as digits as its factorization.

53111717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 735, while the sum is 26.

The square root of 53111717 is about 7287.7786053090. The cubic root of 53111717 is about 375.8923153411.

The spelling of 53111717 in words is "fifty-three million, one hundred eleven thousand, seven hundred seventeen".