52219641569 has 2 divisors, whose sum is σ = 52219641570. Its totient is φ = 52219641568.

The previous prime is 52219641527. The next prime is 52219641601. The reversal of 52219641569 is 96514691225.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37362957025 + 14856684544 = 193295^2 + 121888^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52219641569 is a prime.

It is a super-2 number, since 2×52219641569² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52219641469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26109820784 + 26109820785.

It is an arithmetic number, because the mean of its divisors is an integer number (26109820785).

Almost surely, 2^52219641569 is an apocalyptic number.

It is an amenable number.

52219641569 is a deficient number, since it is larger than the sum of its proper divisors (1).

52219641569 is an equidigital number, since it uses as much as digits as its factorization.

52219641569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1166400, while the sum is 50.

The spelling of 52219641569 in words is "fifty-two billion, two hundred nineteen million, six hundred forty-one thousand, five hundred sixty-nine".