255871488 has 160 divisors (see below), whose sum is σ = 742452480. Its totient is φ = 77987840.

The previous prime is 255871477. The next prime is 255871493. The reversal of 255871488 is 884178552.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1070473 + ... + 1070711.

It is an arithmetic number, because the mean of its divisors is an integer number (4640328).

Almost surely, 2^255871488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255871488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371226240).

255871488 is an abundant number, since it is smaller than the sum of its proper divisors (486580992).

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

255871488 is a wasteful number, since it uses less digits than its factorization.

255871488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 302 counting only the distinct ones).

The product of its digits is 716800, while the sum is 48.

The square root of 255871488 is about 15995.9834958655. The cubic root of 255871488 is about 634.8541529594.

The spelling of 255871488 in words is "two hundred fifty-five million, eight hundred seventy-one thousand, four hundred eighty-eight".