255055556 has 48 divisors (see below), whose sum is σ = 563625216. Its totient is φ = 98402304.

The previous prime is 255055553. The next prime is 255055589. The reversal of 255055556 is 655550552.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (255055553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 701 + ... + 22596.

It is an arithmetic number, because the mean of its divisors is an integer number (11742192).

Almost surely, 2^255055556 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 255055556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281812608).

255055556 is an abundant number, since it is smaller than the sum of its proper divisors (308569660).

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

255055556 is a wasteful number, since it uses less digits than its factorization.

255055556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23348 (or 23346 counting only the distinct ones).

The product of its (nonzero) digits is 187500, while the sum is 38.

The square root of 255055556 is about 15970.4588537712. The cubic root of 255055556 is about 634.1786193110.

The spelling of 255055556 in words is "two hundred fifty-five million, fifty-five thousand, five hundred fifty-six".