255826660 has 12 divisors (see below), whose sum is σ = 537236028. Its totient is φ = 102330656.

The previous prime is 255826657. The next prime is 255826679. The reversal of 255826660 is 66628552.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 144144036 + 111682624 = 12006^2 + 10568^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6395647 + ... + 6395686.

It is an arithmetic number, because the mean of its divisors is an integer number (44769669).

Almost surely, 2^255826660 is an apocalyptic number.

255826660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255826660 is an abundant number, since it is smaller than the sum of its proper divisors (281409368).

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

255826660 is a wasteful number, since it uses less digits than its factorization.

255826660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12791342 (or 12791340 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 255826660 is about 15994.5822077352. The cubic root of 255826660 is about 634.8170758778.

The spelling of 255826660 in words is "two hundred fifty-five million, eight hundred twenty-six thousand, six hundred sixty".