255249680 has 160 divisors (see below), whose sum is σ = 709287936. Its totient is φ = 83607552.

The previous prime is 255249649. The next prime is 255249689. The reversal of 255249680 is 86942552.

255249680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (255249689) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2009777 + ... + 2009903.

Almost surely, 2^255249680 is an apocalyptic number.

255249680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255249680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354643968).

255249680 is an abundant number, since it is smaller than the sum of its proper divisors (454038256).

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

255249680 is a wasteful number, since it uses less digits than its factorization.

255249680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 255249680 is about 15976.5352939866. The cubic root of 255249680 is about 634.3394706334.

The spelling of 255249680 in words is "two hundred fifty-five million, two hundred forty-nine thousand, six hundred eighty".