255489000 has 128 divisors (see below), whose sum is σ = 858574080. Its totient is φ = 62880000.

The previous prime is 255488969. The next prime is 255489001. The reversal of 255489000 is 984552.

It is not an unprimeable number, because it can be changed into a prime (255489001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35725 + ... + 42275.

It is an arithmetic number, because the mean of its divisors is an integer number (6707610).

Almost surely, 2^255489000 is an apocalyptic number.

255489000 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 255489000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (429287040).

255489000 is an abundant number, since it is smaller than the sum of its proper divisors (603085080).

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

255489000 is a wasteful number, since it uses less digits than its factorization.

255489000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6588 (or 6574 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 255489000 is about 15984.0232732563. The cubic root of 255489000 is about 634.5376591960.

The spelling of 255489000 in words is "two hundred fifty-five million, four hundred eighty-nine thousand".