255305280 has 112 divisors (see below), whose sum is σ = 853318080. Its totient is φ = 64493568.

The previous prime is 255305273. The next prime is 255305287. The reversal of 255305280 is 82503552.

255305280 is digitally balanced in base 2, because in such base 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 (255305273) and next prime (255305287).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (255305287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11242 + ... + 25238.

Almost surely, 2^255305280 is an apocalyptic number.

255305280 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 255305280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426659040).

255305280 is an abundant number, since it is smaller than the sum of its proper divisors (598012800).

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

255305280 is a wasteful number, since it uses less digits than its factorization.

255305280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14036 (or 14026 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 255305280 is about 15978.2752511027. The cubic root of 255305280 is about 634.3855258189.

The spelling of 255305280 in words is "two hundred fifty-five million, three hundred five thousand, two hundred eighty".