275011009 has 16 divisors (see below), whose sum is σ = 338867200. Its totient is φ = 217339200.

The previous prime is 275011003. The next prime is 275011027. The reversal of 275011009 is 900110572.

It is not a de Polignac number, because 275011009 - 2³ = 275011001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (275011001) 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 15 ways as a sum of consecutive naturals, for example, 139984 + ... + 141934.

It is an arithmetic number, because the mean of its divisors is an integer number (21179200).

Almost surely, 2^275011009 is an apocalyptic number.

It is an amenable number.

275011009 is a deficient number, since it is larger than the sum of its proper divisors (63856191).

275011009 is a wasteful number, since it uses less digits than its factorization.

275011009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3520.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 275011009 is about 16583.4558822943. The cubic root of 275011009 is about 650.3044010137.

The spelling of 275011009 in words is "two hundred seventy-five million, eleven thousand, nine".