255505028 has 6 divisors (see below), whose sum is σ = 447133806. Its totient is φ = 127752512.

The previous prime is 255505021. The next prime is 255505043. The reversal of 255505028 is 820505552.

255505028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 227647744 + 27857284 = 15088^2 + 5278^2 .

It is a junction number, because it is equal to n+sod(n) for n = 255504985 and 255505003.

It is not an unprimeable number, because it can be changed into a prime (255505021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31938125 + ... + 31938132.

It is an arithmetic number, because the mean of its divisors is an integer number (74522301).

Almost surely, 2^255505028 is an apocalyptic number.

It is an amenable number.

255505028 is a deficient number, since it is larger than the sum of its proper divisors (191628778).

255505028 is a wasteful number, since it uses less digits than its factorization.

255505028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63876261 (or 63876259 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 255505028 is about 15984.5246410395. The cubic root of 255505028 is about 634.5509280737.

The spelling of 255505028 in words is "two hundred fifty-five million, five hundred five thousand, twenty-eight".