52806538957 has 2 divisors, whose sum is σ = 52806538958. Its totient is φ = 52806538956.

The previous prime is 52806538877. The next prime is 52806538991. The reversal of 52806538957 is 75983560825.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47155859716 + 5650679241 = 217154^2 + 75171^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52806538957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52806538997) 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, 26403269478 + 26403269479.

It is an arithmetic number, because the mean of its divisors is an integer number (26403269479).

Almost surely, 2^52806538957 is an apocalyptic number.

It is an amenable number.

52806538957 is a deficient number, since it is larger than the sum of its proper divisors (1).

52806538957 is an equidigital number, since it uses as much as digits as its factorization.

52806538957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144000, while the sum is 58.

The spelling of 52806538957 in words is "fifty-two billion, eight hundred six million, five hundred thirty-eight thousand, nine hundred fifty-seven".