52478100281 has 2 divisors, whose sum is σ = 52478100282. Its totient is φ = 52478100280.

The previous prime is 52478100253. The next prime is 52478100287. The reversal of 52478100281 is 18200187425.

52478100281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52441000000 + 37100281 = 229000^2 + 6091^2 .

It is a cyclic number.

It is not a de Polignac number, because 52478100281 - 2⁶ = 52478100217 is a prime.

It is a super-2 number, since 2×52478100281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52478100287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26239050140 + 26239050141.

It is an arithmetic number, because the mean of its divisors is an integer number (26239050141).

Almost surely, 2^52478100281 is an apocalyptic number.

It is an amenable number.

52478100281 is a deficient number, since it is larger than the sum of its proper divisors (1).

52478100281 is an equidigital number, since it uses as much as digits as its factorization.

52478100281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35840, while the sum is 38.

The spelling of 52478100281 in words is "fifty-two billion, four hundred seventy-eight million, one hundred thousand, two hundred eighty-one".