52400936431913 has 2 divisors, whose sum is σ = 52400936431914. Its totient is φ = 52400936431912.

The previous prime is 52400936431819. The next prime is 52400936432017. The reversal of 52400936431913 is 31913463900425.

52400936431913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49714231892224 + 2686704539689 = 7050832^2 + 1639117^2 .

It is a cyclic number.

It is not a de Polignac number, because 52400936431913 - 2¹² = 52400936427817 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (52400936439913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26200468215956 + 26200468215957.

It is an arithmetic number, because the mean of its divisors is an integer number (26200468215957).

Almost surely, 2^{52400936431913} is an apocalyptic number.

It is an amenable number.

52400936431913 is a deficient number, since it is larger than the sum of its proper divisors (1).

52400936431913 is an equidigital number, since it uses as much as digits as its factorization.

52400936431913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2099520, while the sum is 50.

The spelling of 52400936431913 in words is "fifty-two trillion, four hundred billion, nine hundred thirty-six million, four hundred thirty-one thousand, nine hundred thirteen".