255302280 has 80 divisors (see below), whose sum is σ = 858110220. Its totient is φ = 68079744.

The previous prime is 255302279. The next prime is 255302291. The reversal of 255302280 is 82203552.

It can be written as a sum of positive squares in 2 ways, for example, as 252619236 + 2683044 = 15894^2 + 1638^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36159 + ... + 42638.

Almost surely, 2^255302280 is an apocalyptic number.

255302280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255302280 is an abundant number, since it is smaller than the sum of its proper divisors (602807940).

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

255302280 is a wasteful number, since it uses less digits than its factorization.

255302280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78820 (or 78807 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 255302280 is about 15978.1813733604. The cubic root of 255302280 is about 634.3830409975.

The spelling of 255302280 in words is "two hundred fifty-five million, three hundred two thousand, two hundred eighty".