275365889 has 2 divisors, whose sum is σ = 275365890. Its totient is φ = 275365888.

The previous prime is 275365873. The next prime is 275365897. The reversal of 275365889 is 988563572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272910400 + 2455489 = 16520^2 + 1567^2 .

It is a cyclic number.

It is not a de Polignac number, because 275365889 - 2⁴ = 275365873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 275365889.

It is not a weakly prime, because it can be changed into another prime (275365829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137682944 + 137682945.

It is an arithmetic number, because the mean of its divisors is an integer number (137682945).

Almost surely, 2^275365889 is an apocalyptic number.

It is an amenable number.

275365889 is a deficient number, since it is larger than the sum of its proper divisors (1).

275365889 is an equidigital number, since it uses as much as digits as its factorization.

275365889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 53.

The square root of 275365889 is about 16594.1522531282. The cubic root of 275365889 is about 650.5840029467.

The spelling of 275365889 in words is "two hundred seventy-five million, three hundred sixty-five thousand, eight hundred eighty-nine".