255646288 has 40 divisors (see below), whose sum is σ = 518109696. Its totient is φ = 121968000.

The previous prime is 255646277. The next prime is 255646297. The reversal of 255646288 is 882646552.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 257473 + ... + 258463.

Almost surely, 2^255646288 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 255646288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259054848).

255646288 is an abundant number, since it is smaller than the sum of its proper divisors (262463408).

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

255646288 is a wasteful number, since it uses less digits than its factorization.

255646288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723 (or 1717 counting only the distinct ones).

The product of its digits is 921600, while the sum is 46.

The square root of 255646288 is about 15988.9426792393. The cubic root of 255646288 is about 634.6678470386.

The spelling of 255646288 in words is "two hundred fifty-five million, six hundred forty-six thousand, two hundred eighty-eight".