252256243289 has 2 divisors, whose sum is σ = 252256243290. Its totient is φ = 252256243288.

The previous prime is 252256243241. The next prime is 252256243303. The reversal of 252256243289 is 982342652252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160386633289 + 91869610000 = 400483^2 + 303100^2 .

It is a cyclic number.

It is not a de Polignac number, because 252256243289 - 2⁸ = 252256243033 is a prime.

It is not a weakly prime, because it can be changed into another prime (252256248289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126128121644 + 126128121645.

It is an arithmetic number, because the mean of its divisors is an integer number (126128121645).

Almost surely, 2^252256243289 is an apocalyptic number.

It is an amenable number.

252256243289 is a deficient number, since it is larger than the sum of its proper divisors (1).

252256243289 is an equidigital number, since it uses as much as digits as its factorization.

252256243289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4147200, while the sum is 50.

The spelling of 252256243289 in words is "two hundred fifty-two billion, two hundred fifty-six million, two hundred forty-three thousand, two hundred eighty-nine".