275055681 has 4 divisors (see below), whose sum is σ = 366740912. Its totient is φ = 183370452.

The previous prime is 275055667. The next prime is 275055707. The reversal of 275055681 is 186550572.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 275055681 - 2⁶ = 275055617 is a prime.

It is a super-2 number, since 2×275055681² = 151311255300747522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (275055601) 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, 45842611 + ... + 45842616.

It is an arithmetic number, because the mean of its divisors is an integer number (91685228).

Almost surely, 2^275055681 is an apocalyptic number.

It is an amenable number.

275055681 is a deficient number, since it is larger than the sum of its proper divisors (91685231).

275055681 is an equidigital number, since it uses as much as digits as its factorization.

275055681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91685230.

The product of its (nonzero) digits is 84000, while the sum is 39.

The square root of 275055681 is about 16584.8027121217. The cubic root of 275055681 is about 650.3396103016.

The spelling of 275055681 in words is "two hundred seventy-five million, fifty-five thousand, six hundred eighty-one".