255331984 has 10 divisors (see below), whose sum is σ = 494705750. Its totient is φ = 127665984.

The previous prime is 255331981. The next prime is 255331991. The reversal of 255331984 is 489133552.

It can be written as a sum of positive squares in only one way, i.e., 135210384 + 120121600 = 11628^2 + 10960^2 .

It is not an unprimeable number, because it can be changed into a prime (255331981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7979109 + ... + 7979140.

It is an arithmetic number, because the mean of its divisors is an integer number (49470575).

Almost surely, 2^255331984 is an apocalyptic number.

It is an amenable number.

255331984 is a deficient number, since it is larger than the sum of its proper divisors (239373766).

255331984 is a wasteful number, since it uses less digits than its factorization.

255331984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15958257 (or 15958251 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 255331984 is about 15979.1108638747. The cubic root of 255331984 is about 634.4076431842.

The spelling of 255331984 in words is "two hundred fifty-five million, three hundred thirty-one thousand, nine hundred eighty-four".