280550055 has 8 divisors (see below), whose sum is σ = 448880112. Its totient is φ = 149626688.

The previous prime is 280550047. The next prime is 280550063. The reversal of 280550055 is 550055082.

It is an interprime number because it is at equal distance from previous prime (280550047) and next prime (280550063).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 280550055 - 2³ = 280550047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9351654 + ... + 9351683.

It is an arithmetic number, because the mean of its divisors is an integer number (56110014).

Almost surely, 2^280550055 is an apocalyptic number.

280550055 is a deficient number, since it is larger than the sum of its proper divisors (168330057).

280550055 is a wasteful number, since it uses less digits than its factorization.

280550055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18703345.

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 280550055 is about 16749.6285033430. The cubic root of 280550055 is about 654.6413785745.

The spelling of 280550055 in words is "two hundred eighty million, five hundred fifty thousand, fifty-five".