256548528 has 120 divisors (see below), whose sum is σ = 744260400. Its totient is φ = 82432512.

The previous prime is 256548517. The next prime is 256548563. The reversal of 256548528 is 825845652.

It is a happy number.

256548528 is a `hidden beast` number, since 2 + 56 + 548 + 52 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 953578 + ... + 953846.

It is an arithmetic number, because the mean of its divisors is an integer number (6202170).

Almost surely, 2^256548528 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 256548528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372130200).

256548528 is an abundant number, since it is smaller than the sum of its proper divisors (487711872).

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

256548528 is a wasteful number, since it uses less digits than its factorization.

256548528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499 (or 490 counting only the distinct ones).

The product of its digits is 768000, while the sum is 45.

The square root of 256548528 is about 16017.1323276047. The cubic root of 256548528 is about 635.4136045164.

The spelling of 256548528 in words is "two hundred fifty-six million, five hundred forty-eight thousand, five hundred twenty-eight".