275320287 has 48 divisors (see below), whose sum is σ = 475282080. Its totient is φ = 151603200.

The previous prime is 275320277. The next prime is 275320307. The reversal of 275320287 is 782023572.

It is a happy number.

It is not a de Polignac number, because 275320287 - 2⁶ = 275320223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275320217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45987 + ... + 51627.

It is an arithmetic number, because the mean of its divisors is an integer number (9901710).

Almost surely, 2^275320287 is an apocalyptic number.

275320287 is a deficient number, since it is larger than the sum of its proper divisors (199961793).

275320287 is a wasteful number, since it uses less digits than its factorization.

275320287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5704 (or 5701 counting only the distinct ones).

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

The square root of 275320287 is about 16592.7781579819. The cubic root of 275320287 is about 650.5480876176.

The spelling of 275320287 in words is "two hundred seventy-five million, three hundred twenty thousand, two hundred eighty-seven".