52728187 has 2 divisors, whose sum is σ = 52728188. Its totient is φ = 52728186.

The previous prime is 52728131. The next prime is 52728223. The reversal of 52728187 is 78182725.

52728187 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52728187 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52728887) 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, 26364093 + 26364094.

It is an arithmetic number, because the mean of its divisors is an integer number (26364094).

Almost surely, 2^52728187 is an apocalyptic number.

52728187 is a deficient number, since it is larger than the sum of its proper divisors (1).

52728187 is an equidigital number, since it uses as much as digits as its factorization.

52728187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62720, while the sum is 40.

The square root of 52728187 is about 7261.4176990447. The cubic root of 52728187 is about 374.9853315744.

The spelling of 52728187 in words is "fifty-two million, seven hundred twenty-eight thousand, one hundred eighty-seven".