655550278 has 16 divisors (see below), whose sum is σ = 1061462880. Its totient is φ = 302712256.

The previous prime is 655550267. The next prime is 655550281. The reversal of 655550278 is 872055556.

655550278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 244375 + ... + 247042.

It is an arithmetic number, because the mean of its divisors is an integer number (66341430).

Almost surely, 2^655550278 is an apocalyptic number.

655550278 is a deficient number, since it is larger than the sum of its proper divisors (405912602).

655550278 is a wasteful number, since it uses less digits than its factorization.

655550278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491471.

The product of its (nonzero) digits is 420000, while the sum is 43.

The square root of 655550278 is about 25603.7160974730. The cubic root of 655550278 is about 868.6976939472.

The spelling of 655550278 in words is "six hundred fifty-five million, five hundred fifty thousand, two hundred seventy-eight".