275882009 has 4 divisors (see below), whose sum is σ = 297103716. Its totient is φ = 254660304.

The previous prime is 275881999. The next prime is 275882011. The reversal of 275882009 is 900288572.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 174979984 + 100902025 = 13228^2 + 10045^2 .

It is a cyclic number.

It is not a de Polignac number, because 275882009 - 2¹² = 275877913 is a prime.

It is a super-2 number, since 2×275882009² = 152221765779752162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (275882909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10610834 + ... + 10610859.

It is an arithmetic number, because the mean of its divisors is an integer number (74275929).

Almost surely, 2^275882009 is an apocalyptic number.

It is an amenable number.

275882009 is a deficient number, since it is larger than the sum of its proper divisors (21221707).

275882009 is a wasteful number, since it uses less digits than its factorization.

275882009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21221706.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 275882009 is about 16609.6962344289. The cubic root of 275882009 is about 650.9902138134.

The spelling of 275882009 in words is "two hundred seventy-five million, eight hundred eighty-two thousand, nine".