275540881 has 8 divisors (see below), whose sum is σ = 343531584. Its totient is φ = 214707120.

The previous prime is 275540833. The next prime is 275540893. The reversal of 275540881 is 188045572.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 275540881 - 2⁷ = 275540753 is a prime.

It is a super-2 number, since 2×275540881² = 151845554204512322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (275540801) 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 7 ways as a sum of consecutive naturals, for example, 1789150 + ... + 1789303.

It is an arithmetic number, because the mean of its divisors is an integer number (42941448).

Almost surely, 2^275540881 is an apocalyptic number.

It is an amenable number.

275540881 is a deficient number, since it is larger than the sum of its proper divisors (67990703).

275540881 is a wasteful number, since it uses less digits than its factorization.

275540881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3578471.

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 275540881 is about 16599.4241165168. The cubic root of 275540881 is about 650.7217867617.

The spelling of 275540881 in words is "two hundred seventy-five million, five hundred forty thousand, eight hundred eighty-one".