52806382621 has 2 divisors, whose sum is σ = 52806382622. Its totient is φ = 52806382620.

The previous prime is 52806382597. The next prime is 52806382637. The reversal of 52806382621 is 12628360825.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51833628900 + 972753721 = 227670^2 + 31189^2 .

It is a cyclic number.

It is not a de Polignac number, because 52806382621 - 2⁷ = 52806382493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52806382691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26403191310 + 26403191311.

It is an arithmetic number, because the mean of its divisors is an integer number (26403191311).

Almost surely, 2^52806382621 is an apocalyptic number.

It is an amenable number.

52806382621 is a deficient number, since it is larger than the sum of its proper divisors (1).

52806382621 is an equidigital number, since it uses as much as digits as its factorization.

52806382621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 52806382621 in words is "fifty-two billion, eight hundred six million, three hundred eighty-two thousand, six hundred twenty-one".