275320881 has 12 divisors (see below), whose sum is σ = 433839120. Its totient is φ = 166861080.

The previous prime is 275320861. The next prime is 275320883. The reversal of 275320881 is 188023572.

It is not a de Polignac number, because 275320881 - 2⁷ = 275320753 is a prime.

It is a super-2 number, since 2×275320881² = 151603175029232322, which contains 22 as substring.

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 not an unprimeable number, because it can be changed into a prime (275320883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1390411 + ... + 1390608.

It is an arithmetic number, because the mean of its divisors is an integer number (36153260).

Almost surely, 2^275320881 is an apocalyptic number.

It is an amenable number.

275320881 is a deficient number, since it is larger than the sum of its proper divisors (158518239).

275320881 is a wasteful number, since it uses less digits than its factorization.

275320881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781036 (or 2781033 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 275320881 is about 16592.7960573256. The cubic root of 275320881 is about 650.5485554670.

The spelling of 275320881 in words is "two hundred seventy-five million, three hundred twenty thousand, eight hundred eighty-one".