255128448 has 64 divisors (see below), whose sum is σ = 680641920. Its totient is φ = 84672000.

The previous prime is 255128411. The next prime is 255128453. The reversal of 255128448 is 844821552.

It is a happy number.

255128448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-3 number, since 3×255128448³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95061 + ... + 97707.

It is an arithmetic number, because the mean of its divisors is an integer number (10635030).

Almost surely, 2^255128448 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 255128448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340320960).

255128448 is an abundant number, since it is smaller than the sum of its proper divisors (425513472).

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

255128448 is a wasteful number, since it uses less digits than its factorization.

255128448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2915 (or 2903 counting only the distinct ones).

The product of its digits is 102400, while the sum is 39.

The square root of 255128448 is about 15972.7407792151. The cubic root of 255128448 is about 634.2390272546.

The spelling of 255128448 in words is "two hundred fifty-five million, one hundred twenty-eight thousand, four hundred forty-eight".