255378280 has 32 divisors (see below), whose sum is σ = 579882600. Its totient is φ = 101212416.

The previous prime is 255378251. The next prime is 255378311. The reversal of 255378280 is 82873552.

255378280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 255296484 + 81796 = 15978^2 + 286^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 24927 + ... + 33646.

Almost surely, 2^255378280 is an apocalyptic number.

255378280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255378280 is an abundant number, since it is smaller than the sum of its proper divisors (324504320).

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

255378280 is a wasteful number, since it uses less digits than its factorization.

255378280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58693 (or 58689 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 255378280 is about 15980.5594395190. The cubic root of 255378280 is about 634.4459838063.

The spelling of 255378280 in words is "two hundred fifty-five million, three hundred seventy-eight thousand, two hundred eighty".