52850729 has 2 divisors, whose sum is σ = 52850730. Its totient is φ = 52850728.

The previous prime is 52850663. The next prime is 52850779. The reversal of 52850729 is 92705825.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41473600 + 11377129 = 6440^2 + 3373^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52850729 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52850692 and 52850701.

It is not a weakly prime, because it can be changed into another prime (52850779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26425364 + 26425365.

It is an arithmetic number, because the mean of its divisors is an integer number (26425365).

Almost surely, 2^52850729 is an apocalyptic number.

It is an amenable number.

52850729 is a deficient number, since it is larger than the sum of its proper divisors (1).

52850729 is an equidigital number, since it uses as much as digits as its factorization.

52850729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 52850729 is about 7269.8506862246. The cubic root of 52850729 is about 375.2755994776.

The spelling of 52850729 in words is "fifty-two million, eight hundred fifty thousand, seven hundred twenty-nine".