52805189 has 2 divisors, whose sum is σ = 52805190. Its totient is φ = 52805188.

The previous prime is 52805173. The next prime is 52805191. The reversal of 52805189 is 98150825.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52780225 + 24964 = 7265^2 + 158^2 .

It is a cyclic number.

It is not a de Polignac number, because 52805189 - 2⁴ = 52805173 is a prime.

Together with 52805191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52805149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26402594 + 26402595.

It is an arithmetic number, because the mean of its divisors is an integer number (26402595).

Almost surely, 2^52805189 is an apocalyptic number.

It is an amenable number.

52805189 is a deficient number, since it is larger than the sum of its proper divisors (1).

52805189 is an equidigital number, since it uses as much as digits as its factorization.

52805189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 52805189 is about 7266.7178973729. The cubic root of 52805189 is about 375.1677803289.

The spelling of 52805189 in words is "fifty-two million, eight hundred five thousand, one hundred eighty-nine".