53716709 has 2 divisors, whose sum is σ = 53716710. Its totient is φ = 53716708.

The previous prime is 53716703. The next prime is 53716739. The reversal of 53716709 is 90761735.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50836900 + 2879809 = 7130^2 + 1697^2 .

It is a cyclic number.

It is not a de Polignac number, because 53716709 - 2⁴ = 53716693 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53716703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26858354 + 26858355.

It is an arithmetic number, because the mean of its divisors is an integer number (26858355).

Almost surely, 2^53716709 is an apocalyptic number.

It is an amenable number.

53716709 is a deficient number, since it is larger than the sum of its proper divisors (1).

53716709 is an equidigital number, since it uses as much as digits as its factorization.

53716709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 53716709 is about 7329.1683702859. The cubic root of 53716709 is about 377.3141848264.

The spelling of 53716709 in words is "fifty-three million, seven hundred sixteen thousand, seven hundred nine".