280025055028 has 6 divisors (see below), whose sum is σ = 490043846306. Its totient is φ = 140012527512.

The previous prime is 280025055019. The next prime is 280025055059. The reversal of 280025055028 is 820550520082.

It can be written as a sum of positive squares in only one way, i.e., 153717316624 + 126307738404 = 392068^2 + 355398^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35003131875 + ... + 35003131882.

Almost surely, 2^280025055028 is an apocalyptic number.

It is an amenable number.

280025055028 is a deficient number, since it is larger than the sum of its proper divisors (210018791278).

280025055028 is a wasteful number, since it uses less digits than its factorization.

280025055028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70006263761 (or 70006263759 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 37.

The spelling of 280025055028 in words is "two hundred eighty billion, twenty-five million, fifty-five thousand, twenty-eight".