275855628 has 12 divisors (see below), whose sum is σ = 643663160. Its totient is φ = 91951872.

The previous prime is 275855581. The next prime is 275855633. The reversal of 275855628 is 826558572.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11493973 + ... + 11493996.

Almost surely, 2^275855628 is an apocalyptic number.

It is an amenable number.

275855628 is an abundant number, since it is smaller than the sum of its proper divisors (367807532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

275855628 is a wasteful number, since it uses less digits than its factorization.

275855628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22987976 (or 22987974 counting only the distinct ones).

The product of its digits is 1344000, while the sum is 48.

The square root of 275855628 is about 16608.9020708775. The cubic root of 275855628 is about 650.9694630096.

The spelling of 275855628 in words is "two hundred seventy-five million, eight hundred fifty-five thousand, six hundred twenty-eight".