53513717 has 2 divisors, whose sum is σ = 53513718. Its totient is φ = 53513716.

The previous prime is 53513711. The next prime is 53513783. The reversal of 53513717 is 71731535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41396356 + 12117361 = 6434^2 + 3481^2 .

It is a cyclic number.

It is not a de Polignac number, because 53513717 - 2⁴ = 53513701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53513711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26756858 + 26756859.

It is an arithmetic number, because the mean of its divisors is an integer number (26756859).

Almost surely, 2^53513717 is an apocalyptic number.

It is an amenable number.

53513717 is a deficient number, since it is larger than the sum of its proper divisors (1).

53513717 is an equidigital number, since it uses as much as digits as its factorization.

53513717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11025, while the sum is 32.

The square root of 53513717 is about 7315.3070338845. The cubic root of 53513717 is about 376.8383028402.

The spelling of 53513717 in words is "fifty-three million, five hundred thirteen thousand, seven hundred seventeen".