255991300 has 18 divisors (see below), whose sum is σ = 555501338. Its totient is φ = 102396480.

The previous prime is 255991297. The next prime is 255991303. The reversal of 255991300 is 3199552.

It is a happy number.

255991300 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (255991297) and next prime (255991303).

It can be written as a sum of positive squares in 3 ways, for example, as 14561856 + 241429444 = 3816^2 + 15538^2 .

255991300 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (255991303) 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 5 ways as a sum of consecutive naturals, for example, 1279857 + ... + 1280056.

Almost surely, 2^255991300 is an apocalyptic number.

255991300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255991300 is an abundant number, since it is smaller than the sum of its proper divisors (299510038).

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

255991300 is a wasteful number, since it uses less digits than its factorization.

255991300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559927 (or 2559920 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 255991300 is about 15999.7281226901. The cubic root of 255991300 is about 634.9532277948.

The spelling of 255991300 in words is "two hundred fifty-five million, nine hundred ninety-one thousand, three hundred".