275280273 has 12 divisors (see below), whose sum is σ = 407325828. Its totient is φ = 179043840.

The previous prime is 275280241. The next prime is 275280283. The reversal of 275280273 is 372082572.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27123264 + 248157009 = 5208^2 + 15753^2 .

It is not a de Polignac number, because 275280273 - 2⁵ = 275280241 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (275280223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 372640 + ... + 373377.

It is an arithmetic number, because the mean of its divisors is an integer number (33943819).

Almost surely, 2^275280273 is an apocalyptic number.

It is an amenable number.

275280273 is a deficient number, since it is larger than the sum of its proper divisors (132045555).

275280273 is a wasteful number, since it uses less digits than its factorization.

275280273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746064 (or 746061 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 275280273 is about 16591.5723486353. The cubic root of 275280273 is about 650.5165700317.

The spelling of 275280273 in words is "two hundred seventy-five million, two hundred eighty thousand, two hundred seventy-three".