52451543161 has 2 divisors, whose sum is σ = 52451543162. Its totient is φ = 52451543160.

The previous prime is 52451543093. The next prime is 52451543189. The reversal of 52451543161 is 16134515425.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52130022400 + 321520761 = 228320^2 + 17931^2 .

It is a cyclic number.

It is not a de Polignac number, because 52451543161 - 2¹⁷ = 52451412089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52451543161.

It is not a weakly prime, because it can be changed into another prime (52451543461) 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, 26225771580 + 26225771581.

It is an arithmetic number, because the mean of its divisors is an integer number (26225771581).

Almost surely, 2^52451543161 is an apocalyptic number.

It is an amenable number.

52451543161 is a deficient number, since it is larger than the sum of its proper divisors (1).

52451543161 is an equidigital number, since it uses as much as digits as its factorization.

52451543161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 37.

The spelling of 52451543161 in words is "fifty-two billion, four hundred fifty-one million, five hundred forty-three thousand, one hundred sixty-one".