52111320557 has 2 divisors, whose sum is σ = 52111320558. Its totient is φ = 52111320556.

The previous prime is 52111320493. The next prime is 52111320559. The reversal of 52111320557 is 75502311125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30246079396 + 21865241161 = 173914^2 + 147869^2 .

It is a cyclic number.

It is not a de Polignac number, because 52111320557 - 2⁶ = 52111320493 is a prime.

Together with 52111320559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52111320559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26055660278 + 26055660279.

It is an arithmetic number, because the mean of its divisors is an integer number (26055660279).

Almost surely, 2^52111320557 is an apocalyptic number.

It is an amenable number.

52111320557 is a deficient number, since it is larger than the sum of its proper divisors (1).

52111320557 is an equidigital number, since it uses as much as digits as its factorization.

52111320557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10500, while the sum is 32.

The spelling of 52111320557 in words is "fifty-two billion, one hundred eleven million, three hundred twenty thousand, five hundred fifty-seven".