253564773089 has 2 divisors, whose sum is σ = 253564773090. Its totient is φ = 253564773088.

The previous prime is 253564773067. The next prime is 253564773197. The reversal of 253564773089 is 980377465352.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192707830225 + 60856942864 = 438985^2 + 246692^2 .

It is a cyclic number.

It is not a de Polignac number, because 253564773089 - 2¹⁶ = 253564707553 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (253564770089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126782386544 + 126782386545.

It is an arithmetic number, because the mean of its divisors is an integer number (126782386545).

Almost surely, 2^253564773089 is an apocalyptic number.

It is an amenable number.

253564773089 is a deficient number, since it is larger than the sum of its proper divisors (1).

253564773089 is an equidigital number, since it uses as much as digits as its factorization.

253564773089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38102400, while the sum is 59.

The spelling of 253564773089 in words is "two hundred fifty-three billion, five hundred sixty-four million, seven hundred seventy-three thousand, eighty-nine".