52209825557 has 2 divisors, whose sum is σ = 52209825558. Its totient is φ = 52209825556.

The previous prime is 52209825511. The next prime is 52209825581. The reversal of 52209825557 is 75552890225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51580768996 + 629056561 = 227114^2 + 25081^2 .

It is a cyclic number.

It is not a de Polignac number, because 52209825557 - 2²⁰ = 52208776981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52209825257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26104912778 + 26104912779.

It is an arithmetic number, because the mean of its divisors is an integer number (26104912779).

Almost surely, 2^52209825557 is an apocalyptic number.

It is an amenable number.

52209825557 is a deficient number, since it is larger than the sum of its proper divisors (1).

52209825557 is an equidigital number, since it uses as much as digits as its factorization.

52209825557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520000, while the sum is 50.

The spelling of 52209825557 in words is "fifty-two billion, two hundred nine million, eight hundred twenty-five thousand, five hundred fifty-seven".