52171489121 has 2 divisors, whose sum is σ = 52171489122. Its totient is φ = 52171489120.

The previous prime is 52171489079. The next prime is 52171489127. The reversal of 52171489121 is 12198417125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52058810896 + 112678225 = 228164^2 + 10615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52171489121 is a prime.

It is not a weakly prime, because it can be changed into another prime (52171489127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26085744560 + 26085744561.

It is an arithmetic number, because the mean of its divisors is an integer number (26085744561).

Almost surely, 2^52171489121 is an apocalyptic number.

It is an amenable number.

52171489121 is a deficient number, since it is larger than the sum of its proper divisors (1).

52171489121 is an equidigital number, since it uses as much as digits as its factorization.

52171489121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 41.

The spelling of 52171489121 in words is "fifty-two billion, one hundred seventy-one million, four hundred eighty-nine thousand, one hundred twenty-one".