280125256 has 16 divisors (see below), whose sum is σ = 525416940. Its totient is φ = 140014080.

The previous prime is 280125229. The next prime is 280125259. The reversal of 280125256 is 652521082.

It can be written as a sum of positive squares in 2 ways, for example, as 270076356 + 10048900 = 16434^2 + 3170^2 .

It is not an unprimeable number, because it can be changed into a prime (280125259) 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 3 ways as a sum of consecutive naturals, for example, 34060 + ... + 41476.

Almost surely, 2^280125256 is an apocalyptic number.

It is an amenable number.

280125256 is a deficient number, since it is larger than the sum of its proper divisors (245291684).

280125256 is a wasteful number, since it uses less digits than its factorization.

280125256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12144 (or 12140 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 280125256 is about 16736.9428510705. The cubic root of 280125256 is about 654.3108000381.

The spelling of 280125256 in words is "two hundred eighty million, one hundred twenty-five thousand, two hundred fifty-six".