52155216481 has 2 divisors, whose sum is σ = 52155216482. Its totient is φ = 52155216480.

The previous prime is 52155216437. The next prime is 52155216497. The reversal of 52155216481 is 18461255125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47465158225 + 4690058256 = 217865^2 + 68484^2 .

It is a cyclic number.

It is not a de Polignac number, because 52155216481 - 2⁹ = 52155215969 is a prime.

It is a super-2 number, since 2×52155216481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52155219481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26077608240 + 26077608241.

It is an arithmetic number, because the mean of its divisors is an integer number (26077608241).

Almost surely, 2^52155216481 is an apocalyptic number.

It is an amenable number.

52155216481 is a deficient number, since it is larger than the sum of its proper divisors (1).

52155216481 is an equidigital number, since it uses as much as digits as its factorization.

52155216481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96000, while the sum is 40.

The spelling of 52155216481 in words is "fifty-two billion, one hundred fifty-five million, two hundred sixteen thousand, four hundred eighty-one".