52642221169 has 2 divisors, whose sum is σ = 52642221170. Its totient is φ = 52642221168.

The previous prime is 52642221139. The next prime is 52642221179. The reversal of 52642221169 is 96112224625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48251833569 + 4390387600 = 219663^2 + 66260^2 .

It is a cyclic number.

It is not a de Polignac number, because 52642221169 - 2³¹ = 50494737521 is a prime.

It is a super-2 number, since 2×52642221169² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52642221139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26321110584 + 26321110585.

It is an arithmetic number, because the mean of its divisors is an integer number (26321110585).

Almost surely, 2^52642221169 is an apocalyptic number.

It is an amenable number.

52642221169 is a deficient number, since it is larger than the sum of its proper divisors (1).

52642221169 is an equidigital number, since it uses as much as digits as its factorization.

52642221169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 40.

The spelling of 52642221169 in words is "fifty-two billion, six hundred forty-two million, two hundred twenty-one thousand, one hundred sixty-nine".