255503028 has 48 divisors (see below), whose sum is σ = 653313024. Its totient is φ = 77075040.

The previous prime is 255503009. The next prime is 255503063. The reversal of 255503028 is 820305552.

It is a junction number, because it is equal to n+sod(n) for n = 255502986 and 255503004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25701 + ... + 34227.

It is an arithmetic number, because the mean of its divisors is an integer number (13610688).

Almost surely, 2^255503028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255503028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326656512).

255503028 is an abundant number, since it is smaller than the sum of its proper divisors (397809996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255503028 is a wasteful number, since it uses less digits than its factorization.

255503028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8772 (or 8770 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 255503028 is about 15984.4620804080. The cubic root of 255503028 is about 634.5492723918.

The spelling of 255503028 in words is "two hundred fifty-five million, five hundred three thousand, twenty-eight".