52140689 has 2 divisors, whose sum is σ = 52140690. Its totient is φ = 52140688.

The previous prime is 52140679. The next prime is 52140691. The reversal of 52140689 is 98604125.

52140689 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., 51552400 + 588289 = 7180^2 + 767^2 .

It is a cyclic number.

It is not a de Polignac number, because 52140689 - 2¹² = 52136593 is a prime.

Together with 52140691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52140619) 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, 26070344 + 26070345.

It is an arithmetic number, because the mean of its divisors is an integer number (26070345).

Almost surely, 2^52140689 is an apocalyptic number.

It is an amenable number.

52140689 is a deficient number, since it is larger than the sum of its proper divisors (1).

52140689 is an equidigital number, since it uses as much as digits as its factorization.

52140689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 52140689 is about 7220.8509886301. The cubic root of 52140689 is about 373.5874300336.

The spelling of 52140689 in words is "fifty-two million, one hundred forty thousand, six hundred eighty-nine".