53446451281 has 2 divisors, whose sum is σ = 53446451282. Its totient is φ = 53446451280.

The previous prime is 53446451269. The next prime is 53446451341. The reversal of 53446451281 is 18215464435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42349935681 + 11096515600 = 205791^2 + 105340^2 .

It is a cyclic number.

It is not a de Polignac number, because 53446451281 - 2¹¹ = 53446449233 is a prime.

It is a super-2 number, since 2×53446451281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53446451231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26723225640 + 26723225641.

It is an arithmetic number, because the mean of its divisors is an integer number (26723225641).

Almost surely, 2^53446451281 is an apocalyptic number.

It is an amenable number.

53446451281 is a deficient number, since it is larger than the sum of its proper divisors (1).

53446451281 is an equidigital number, since it uses as much as digits as its factorization.

53446451281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 460800, while the sum is 43.

The spelling of 53446451281 in words is "fifty-three billion, four hundred forty-six million, four hundred fifty-one thousand, two hundred eighty-one".