255408280 has 32 divisors (see below), whose sum is σ = 577198800. Its totient is φ = 101713536.

The previous prime is 255408277. The next prime is 255408319. The reversal of 255408280 is 82804552.

255408280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4782 + ... + 23101.

Almost surely, 2^255408280 is an apocalyptic number.

255408280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255408280 is an abundant number, since it is smaller than the sum of its proper divisors (321790520).

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

255408280 is a wasteful number, since it uses less digits than its factorization.

255408280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28123 (or 28119 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 255408280 is about 15981.4980524355. The cubic root of 255408280 is about 634.4708262143.

The spelling of 255408280 in words is "two hundred fifty-five million, four hundred eight thousand, two hundred eighty".