52780229 has 2 divisors, whose sum is σ = 52780230. Its totient is φ = 52780228.

The previous prime is 52780213. The next prime is 52780249. The reversal of 52780229 is 92208725.

52780229 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., 52780225 + 4 = 7265^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 52780229 - 2⁴ = 52780213 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52780249) 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, 26390114 + 26390115.

It is an arithmetic number, because the mean of its divisors is an integer number (26390115).

Almost surely, 2^52780229 is an apocalyptic number.

It is an amenable number.

52780229 is a deficient number, since it is larger than the sum of its proper divisors (1).

52780229 is an equidigital number, since it uses as much as digits as its factorization.

52780229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 52780229 is about 7265.0002752925. Note that the first 3 decimals coincide. The cubic root of 52780229 is about 375.1086594749.

The spelling of 52780229 in words is "fifty-two million, seven hundred eighty thousand, two hundred twenty-nine".