255886025582720 has 128 divisors (see below), whose sum is σ = 658842768864000. Its totient is φ = 94472492986368.

The previous prime is 255886025582711. The next prime is 255886025582723. The reversal of 255886025582720 is 27285520688552.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (65).

It is not an unprimeable number, because it can be changed into a prime (255886025582723) 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, 91464821 + ... + 94220939.

It is an arithmetic number, because the mean of its divisors is an integer number (5147209131750).

Almost surely, 2^{255886025582720} is an apocalyptic number.

255886025582720 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 255886025582720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329421384432000).

255886025582720 is an abundant number, since it is smaller than the sum of its proper divisors (402956743281280).

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

255886025582720 is a wasteful number, since it uses less digits than its factorization.

255886025582720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767310 (or 2767298 counting only the distinct ones).

The product of its (nonzero) digits is 215040000, while the sum is 65.

The spelling of 255886025582720 in words is "two hundred fifty-five trillion, eight hundred eighty-six billion, twenty-five million, five hundred eighty-two thousand, seven hundred twenty".