252959689 has 2 divisors, whose sum is σ = 252959690. Its totient is φ = 252959688.

The previous prime is 252959683. The next prime is 252959701. The reversal of 252959689 is 986959252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 247747600 + 5212089 = 15740^2 + 2283^2 .

It is a cyclic number.

It is not a de Polignac number, because 252959689 - 2⁷ = 252959561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (252959683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126479844 + 126479845.

It is an arithmetic number, because the mean of its divisors is an integer number (126479845).

Almost surely, 2^252959689 is an apocalyptic number.

It is an amenable number.

252959689 is a deficient number, since it is larger than the sum of its proper divisors (1).

252959689 is an equidigital number, since it uses as much as digits as its factorization.

252959689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3499200, while the sum is 55.

The square root of 252959689 is about 15904.7065046797. The cubic root of 252959689 is about 632.4367616320.

The spelling of 252959689 in words is "two hundred fifty-two million, nine hundred fifty-nine thousand, six hundred eighty-nine".