275549089 has 2 divisors, whose sum is σ = 275549090. Its totient is φ = 275549088.

The previous prime is 275549081. The next prime is 275549093. The reversal of 275549089 is 980945572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187470864 + 88078225 = 13692^2 + 9385^2 .

It is a cyclic number.

It is not a de Polignac number, because 275549089 - 2³ = 275549081 is a prime.

It is not a weakly prime, because it can be changed into another prime (275549081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137774544 + 137774545.

It is an arithmetic number, because the mean of its divisors is an integer number (137774545).

Almost surely, 2^275549089 is an apocalyptic number.

It is an amenable number.

275549089 is a deficient number, since it is larger than the sum of its proper divisors (1).

275549089 is an equidigital number, since it uses as much as digits as its factorization.

275549089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 49.

The square root of 275549089 is about 16599.6713521684. The cubic root of 275549089 is about 650.7282480793.

The spelling of 275549089 in words is "two hundred seventy-five million, five hundred forty-nine thousand, eighty-nine".