52758709 has 2 divisors, whose sum is σ = 52758710. Its totient is φ = 52758708.

The previous prime is 52758703. The next prime is 52758733. The reversal of 52758709 is 90785725.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52272900 + 485809 = 7230^2 + 697^2 .

It is a cyclic number.

It is not a de Polignac number, because 52758709 - 2⁹ = 52758197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52758703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26379354 + 26379355.

It is an arithmetic number, because the mean of its divisors is an integer number (26379355).

Almost surely, 2^52758709 is an apocalyptic number.

It is an amenable number.

52758709 is a deficient number, since it is larger than the sum of its proper divisors (1).

52758709 is an equidigital number, since it uses as much as digits as its factorization.

52758709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 176400, while the sum is 43.

The square root of 52758709 is about 7263.5190507081. The cubic root of 52758709 is about 375.0576717227.

The spelling of 52758709 in words is "fifty-two million, seven hundred fifty-eight thousand, seven hundred nine".