52128767 has 2 divisors, whose sum is σ = 52128768. Its totient is φ = 52128766.

The previous prime is 52128743. The next prime is 52128779. The reversal of 52128767 is 76782125.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52128767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52128767.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52128737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26064383 + 26064384.

It is an arithmetic number, because the mean of its divisors is an integer number (26064384).

Almost surely, 2^52128767 is an apocalyptic number.

52128767 is a deficient number, since it is larger than the sum of its proper divisors (1).

52128767 is an equidigital number, since it uses as much as digits as its factorization.

52128767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47040, while the sum is 38.

The square root of 52128767 is about 7220.0254154677. The cubic root of 52128767 is about 373.5589541994.

The spelling of 52128767 in words is "fifty-two million, one hundred twenty-eight thousand, seven hundred sixty-seven".