275020289 has 2 divisors, whose sum is σ = 275020290. Its totient is φ = 275020288.

The previous prime is 275020279. The next prime is 275020321. The reversal of 275020289 is 982020572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148840000 + 126180289 = 12200^2 + 11233^2 .

It is a cyclic number.

It is not a de Polignac number, because 275020289 - 2²⁰ = 273971713 is a prime.

It is not a weakly prime, because it can be changed into another prime (275020279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137510144 + 137510145.

It is an arithmetic number, because the mean of its divisors is an integer number (137510145).

Almost surely, 2^275020289 is an apocalyptic number.

It is an amenable number.

275020289 is a deficient number, since it is larger than the sum of its proper divisors (1).

275020289 is an equidigital number, since it uses as much as digits as its factorization.

275020289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 275020289 is about 16583.7356768612. The cubic root of 275020289 is about 650.3117155778.

The spelling of 275020289 in words is "two hundred seventy-five million, twenty thousand, two hundred eighty-nine".