255988560 has 40 divisors (see below), whose sum is σ = 793565280. Its totient is φ = 68263552.

The previous prime is 255988559. The next prime is 255988561. The reversal of 255988560 is 65889552.

It is an interprime number because it is at equal distance from previous prime (255988559) and next prime (255988561).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255988561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533070 + ... + 533549.

It is an arithmetic number, because the mean of its divisors is an integer number (19839132).

Almost surely, 2^255988560 is an apocalyptic number.

255988560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255988560 is an abundant number, since it is smaller than the sum of its proper divisors (537576720).

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

255988560 is a wasteful number, since it uses less digits than its factorization.

255988560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066635 (or 1066629 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 48.

The square root of 255988560 is about 15999.6424960060. The cubic root of 255988560 is about 634.9509623818.

It can be divided in two parts, 2559 and 88560, that added together give a palindrome (91119).

The spelling of 255988560 in words is "two hundred fifty-five million, nine hundred eighty-eight thousand, five hundred sixty".