52727640617 has 2 divisors, whose sum is σ = 52727640618. Its totient is φ = 52727640616.

The previous prime is 52727640583. The next prime is 52727640661. The reversal of 52727640617 is 71604672725.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41856658921 + 10870981696 = 204589^2 + 104264^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52727640617 is a prime.

It is not a weakly prime, because it can be changed into another prime (52727640517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26363820308 + 26363820309.

It is an arithmetic number, because the mean of its divisors is an integer number (26363820309).

Almost surely, 2^52727640617 is an apocalyptic number.

It is an amenable number.

52727640617 is a deficient number, since it is larger than the sum of its proper divisors (1).

52727640617 is an equidigital number, since it uses as much as digits as its factorization.

52727640617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 987840, while the sum is 47.

The spelling of 52727640617 in words is "fifty-two billion, seven hundred twenty-seven million, six hundred forty thousand, six hundred seventeen".