52381755169 has 2 divisors, whose sum is σ = 52381755170. Its totient is φ = 52381755168.

The previous prime is 52381755137. The next prime is 52381755193. The reversal of 52381755169 is 96155718325.

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., 32720106769 + 19661648400 = 180887^2 + 140220^2 .

It is a cyclic number.

It is not a de Polignac number, because 52381755169 - 2⁵ = 52381755137 is a prime.

It is a super-2 number, since 2×52381755169² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52381755109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26190877584 + 26190877585.

It is an arithmetic number, because the mean of its divisors is an integer number (26190877585).

Almost surely, 2^52381755169 is an apocalyptic number.

It is an amenable number.

52381755169 is a deficient number, since it is larger than the sum of its proper divisors (1).

52381755169 is an equidigital number, since it uses as much as digits as its factorization.

52381755169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268000, while the sum is 52.

The spelling of 52381755169 in words is "fifty-two billion, three hundred eighty-one million, seven hundred fifty-five thousand, one hundred sixty-nine".