255558450 has 192 divisors, whose sum is σ = 779950080. Its totient is φ = 54051840.

The previous prime is 255558449. The next prime is 255558491. The reversal of 255558450 is 54855552.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 255558399 and 255558408.

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, 1838481 + ... + 1838619.

It is an arithmetic number, because the mean of its divisors is an integer number (4062240).

Almost surely, 2^255558450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255558450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389975040).

255558450 is an abundant number, since it is smaller than the sum of its proper divisors (524391630).

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

255558450 is a wasteful number, since it uses less digits than its factorization.

255558450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 39.

The square root of 255558450 is about 15986.1956074608. The cubic root of 255558450 is about 634.5951497963.

The spelling of 255558450 in words is "two hundred fifty-five million, five hundred fifty-eight thousand, four hundred fifty".