275025281 has 2 divisors, whose sum is σ = 275025282. Its totient is φ = 275025280.

The previous prime is 275025263. The next prime is 275025301. The reversal of 275025281 is 182520572.

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., 274896400 + 128881 = 16580^2 + 359^2 .

It is a cyclic number.

It is not a de Polignac number, because 275025281 - 2⁶ = 275025217 is a prime.

It is a super-2 number, since 2×275025281² = 151277810378257922, which contains 22 as substring.

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 (275025251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137512640 + 137512641.

It is an arithmetic number, because the mean of its divisors is an integer number (137512641).

Almost surely, 2^275025281 is an apocalyptic number.

It is an amenable number.

275025281 is a deficient number, since it is larger than the sum of its proper divisors (1).

275025281 is an equidigital number, since it uses as much as digits as its factorization.

275025281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 275025281 is about 16583.8861850894. The cubic root of 275025281 is about 650.3156502408.

The spelling of 275025281 in words is "two hundred seventy-five million, twenty-five thousand, two hundred eighty-one".