52404436729 has 2 divisors, whose sum is σ = 52404436730. Its totient is φ = 52404436728.

The previous prime is 52404436723. The next prime is 52404436739. The reversal of 52404436729 is 92763440425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39699765504 + 12704671225 = 199248^2 + 112715^2 .

It is a cyclic number.

It is not a de Polignac number, because 52404436729 - 2¹³ = 52404428537 is a prime.

It is not a weakly prime, because it can be changed into another prime (52404436723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26202218364 + 26202218365.

It is an arithmetic number, because the mean of its divisors is an integer number (26202218365).

Almost surely, 2^52404436729 is an apocalyptic number.

It is an amenable number.

52404436729 is a deficient number, since it is larger than the sum of its proper divisors (1).

52404436729 is an equidigital number, since it uses as much as digits as its factorization.

52404436729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 46.

The spelling of 52404436729 in words is "fifty-two billion, four hundred four million, four hundred thirty-six thousand, seven hundred twenty-nine".