280555227 has 12 divisors (see below), whose sum is σ = 405848664. Its totient is φ = 186758880.

The previous prime is 280555181. The next prime is 280555241. The reversal of 280555227 is 722555082.

280555227 is a `hidden beast` number, since 2 + 80 + 5 + 552 + 27 = 666.

It is not a de Polignac number, because 280555227 - 2¹⁰ = 280554203 is a prime.

It is a super-2 number, since 2×280555227² = 157422470794043058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 280555191 and 280555200.

It is not an unprimeable number, because it can be changed into a prime (280550227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16674 + ... + 28967.

It is an arithmetic number, because the mean of its divisors is an integer number (33820722).

Almost surely, 2^280555227 is an apocalyptic number.

280555227 is a deficient number, since it is larger than the sum of its proper divisors (125293437).

280555227 is a wasteful number, since it uses less digits than its factorization.

280555227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46330 (or 46327 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 280555227 is about 16749.7828941154. The cubic root of 280555227 is about 654.6454013675.

The spelling of 280555227 in words is "two hundred eighty million, five hundred fifty-five thousand, two hundred twenty-seven".