255205760 has 32 divisors (see below), whose sum is σ = 610102800. Its totient is φ = 102082048.

The previous prime is 255205757. The next prime is 255205781. The reversal of 255205760 is 67502552.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198740 + ... + 200019.

Almost surely, 2^255205760 is an apocalyptic number.

255205760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255205760 is an abundant number, since it is smaller than the sum of its proper divisors (354897040).

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

255205760 is an equidigital number, since it uses as much as digits as its factorization.

255205760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398778 (or 398766 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 255205760 is about 15975.1607190663. The cubic root of 255205760 is about 634.3030856219.

The spelling of 255205760 in words is "two hundred fifty-five million, two hundred five thousand, seven hundred sixty".