275895009 has 96 divisors (see below), whose sum is σ = 476636160. Its totient is φ = 152409600.

The previous prime is 275894999. The next prime is 275895031. The reversal of 275895009 is 900598572.

It is a happy number.

It is not a de Polignac number, because 275895009 - 2¹² = 275890913 is a prime.

It is a super-2 number, since 2×275895009² = 152236111982220162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (275895049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4522839 + ... + 4522899.

It is an arithmetic number, because the mean of its divisors is an integer number (4964960).

Almost surely, 2^275895009 is an apocalyptic number.

275895009 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

275895009 is a deficient number, since it is larger than the sum of its proper divisors (200741151).

275895009 is a wasteful number, since it uses less digits than its factorization.

275895009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 275895009 is about 16610.0875674995. The cubic root of 275895009 is about 651.0004388849. Note that the first 3 decimals are identical.

The spelling of 275895009 in words is "two hundred seventy-five million, eight hundred ninety-five thousand, nine".