255591488 has 14 divisors (see below), whose sum is σ = 507189486. Its totient is φ = 127795712.

The previous prime is 255591487. The next prime is 255591491. The reversal of 255591488 is 884195552.

It can be written as a sum of positive squares in only one way, i.e., 164044864 + 91546624 = 12808^2 + 9568^2 .

It is not an unprimeable number, because it can be changed into a prime (255591487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1996745 + ... + 1996872.

Almost surely, 2^255591488 is an apocalyptic number.

It is an amenable number.

255591488 is a deficient number, since it is larger than the sum of its proper divisors (251597998).

255591488 is an equidigital number, since it uses as much as digits as its factorization.

255591488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3993629 (or 3993619 counting only the distinct ones).

The product of its digits is 576000, while the sum is 47.

The square root of 255591488 is about 15987.2289030964. The cubic root of 255591488 is about 634.6224949446.

The spelling of 255591488 in words is "two hundred fifty-five million, five hundred ninety-one thousand, four hundred eighty-eight".