255556030058520 has 128 divisors (see below), whose sum is σ = 769231911651840. Its totient is φ = 67920435671040.

The previous prime is 255556030058477. The next prime is 255556030058533. The reversal of 255556030058520 is 25850030655552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 293161224 + ... + 294031656.

It is an arithmetic number, because the mean of its divisors is an integer number (6009624309780).

Almost surely, 2^{255556030058520} is an apocalyptic number.

255556030058520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255556030058520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384615955825920).

255556030058520 is an abundant number, since it is smaller than the sum of its proper divisors (513675881593320).

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

255556030058520 is a wasteful number, since it uses less digits than its factorization.

255556030058520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878625 (or 878621 counting only the distinct ones).

The product of its (nonzero) digits is 9000000, while the sum is 51.

The spelling of 255556030058520 in words is "two hundred fifty-five trillion, five hundred fifty-six billion, thirty million, fifty-eight thousand, five hundred twenty".