52102861 has 2 divisors, whose sum is σ = 52102862. Its totient is φ = 52102860.

The previous prime is 52102849. The next prime is 52102867. The reversal of 52102861 is 16820125.

52102861 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., 40068900 + 12033961 = 6330^2 + 3469^2 .

It is a cyclic number.

It is not a de Polignac number, because 52102861 - 2¹⁵ = 52070093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52102867) 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, 26051430 + 26051431.

It is an arithmetic number, because the mean of its divisors is an integer number (26051431).

Almost surely, 2^52102861 is an apocalyptic number.

It is an amenable number.

52102861 is a deficient number, since it is larger than the sum of its proper divisors (1).

52102861 is an equidigital number, since it uses as much as digits as its factorization.

52102861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 52102861 is about 7218.2311545142. The cubic root of 52102861 is about 373.4970624496.

Adding to 52102861 its reverse (16820125), we get a palindrome (68922986).

The spelling of 52102861 in words is "fifty-two million, one hundred two thousand, eight hundred sixty-one".