52478100569 has 2 divisors, whose sum is σ = 52478100570. Its totient is φ = 52478100568.

The previous prime is 52478100553. The next prime is 52478100589. The reversal of 52478100569 is 96500187425.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40084844944 + 12393255625 = 200212^2 + 111325^2 .

It is a cyclic number.

It is not a de Polignac number, because 52478100569 - 2⁴ = 52478100553 is a prime.

It is a super-2 number, since 2×52478100569² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52478100539) 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, 26239050284 + 26239050285.

It is an arithmetic number, because the mean of its divisors is an integer number (26239050285).

Almost surely, 2^52478100569 is an apocalyptic number.

It is an amenable number.

52478100569 is a deficient number, since it is larger than the sum of its proper divisors (1).

52478100569 is an equidigital number, since it uses as much as digits as its factorization.

52478100569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 52478100569 in words is "fifty-two billion, four hundred seventy-eight million, one hundred thousand, five hundred sixty-nine".