255989552 has 80 divisors (see below), whose sum is σ = 616418880. Its totient is φ = 100279296.

The previous prime is 255989549. The next prime is 255989557.

255989552 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 255989552.

It is not an unprimeable number, because it can be changed into a prime (255989557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157898 + ... + 159510.

It is an arithmetic number, because the mean of its divisors is an integer number (7705236).

Almost surely, 2^255989552 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 255989552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308209440).

255989552 is an abundant number, since it is smaller than the sum of its proper divisors (360429328).

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

255989552 is a wasteful number, since it uses less digits than its factorization.

255989552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750 (or 1744 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 50.

The square root of 255989552 is about 15999.6734966686. The cubic root of 255989552 is about 634.9517825624.

The spelling of 255989552 in words is "two hundred fifty-five million, nine hundred eighty-nine thousand, five hundred fifty-two".