53473531729 has 2 divisors, whose sum is σ = 53473531730. Its totient is φ = 53473531728.

The previous prime is 53473531717. The next prime is 53473531753. The reversal of 53473531729 is 92713537435.

53473531729 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., 43171281729 + 10302250000 = 207777^2 + 101500^2 .

It is a cyclic number.

It is not a de Polignac number, because 53473531729 - 2¹⁵ = 53473498961 is a prime.

It is not a weakly prime, because it can be changed into another prime (53473531799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26736765864 + 26736765865.

It is an arithmetic number, because the mean of its divisors is an integer number (26736765865).

Almost surely, 2^53473531729 is an apocalyptic number.

It is an amenable number.

53473531729 is a deficient number, since it is larger than the sum of its proper divisors (1).

53473531729 is an equidigital number, since it uses as much as digits as its factorization.

53473531729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2381400, while the sum is 49.

The spelling of 53473531729 in words is "fifty-three billion, four hundred seventy-three million, five hundred thirty-one thousand, seven hundred twenty-nine".