52120046569 has 2 divisors, whose sum is σ = 52120046570. Its totient is φ = 52120046568.

The previous prime is 52120046519. The next prime is 52120046579. The reversal of 52120046569 is 96564002125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48747340944 + 3372705625 = 220788^2 + 58075^2 .

It is a cyclic number.

It is not a de Polignac number, because 52120046569 - 2¹⁹ = 52119522281 is a prime.

It is a super-2 number, since 2×52120046569² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52120046519) 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, 26060023284 + 26060023285.

It is an arithmetic number, because the mean of its divisors is an integer number (26060023285).

Almost surely, 2^52120046569 is an apocalyptic number.

It is an amenable number.

52120046569 is a deficient number, since it is larger than the sum of its proper divisors (1).

52120046569 is an equidigital number, since it uses as much as digits as its factorization.

52120046569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 52120046569 in words is "fifty-two billion, one hundred twenty million, forty-six thousand, five hundred sixty-nine".