52136729 has 2 divisors, whose sum is σ = 52136730. Its totient is φ = 52136728.

The previous prime is 52136701. The next prime is 52136743. The reversal of 52136729 is 92763125.

52136729 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., 31416025 + 20720704 = 5605^2 + 4552^2 .

It is a cyclic number.

It is not a de Polignac number, because 52136729 - 2⁸ = 52136473 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 (52136429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26068364 + 26068365.

It is an arithmetic number, because the mean of its divisors is an integer number (26068365).

Almost surely, 2^52136729 is an apocalyptic number.

It is an amenable number.

52136729 is a deficient number, since it is larger than the sum of its proper divisors (1).

52136729 is an equidigital number, since it uses as much as digits as its factorization.

52136729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 35.

The square root of 52136729 is about 7220.5767775158. The cubic root of 52136729 is about 373.5779720095.

The spelling of 52136729 in words is "fifty-two million, one hundred thirty-six thousand, seven hundred twenty-nine".