255546720 has 576 divisors, whose sum is σ = 1099635264. Its totient is φ = 53084160.

The previous prime is 255546719. The next prime is 255546749. The reversal of 255546720 is 27645552.

255546720 is a `hidden beast` number, since 25 + 554 + 67 + 20 = 666.

255546720 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×255546720² = 130608252205516800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3500604 + ... + 3500676.

It is an arithmetic number, because the mean of its divisors is an integer number (1909089).

Almost surely, 2^255546720 is an apocalyptic number.

255546720 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 255546720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (549817632).

255546720 is an abundant number, since it is smaller than the sum of its proper divisors (844088544).

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

255546720 is a wasteful number, since it uses less digits than its factorization.

255546720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 255546720 is about 15985.8287242170. The cubic root of 255546720 is about 634.5854404519.

The spelling of 255546720 in words is "two hundred fifty-five million, five hundred forty-six thousand, seven hundred twenty".