255555270 has 64 divisors (see below), whose sum is σ = 691130880. Its totient is φ = 67183200.

The previous prime is 255555247. The next prime is 255555281. The reversal of 255555270 is 72555552.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12505 + ... + 25835.

It is an arithmetic number, because the mean of its divisors is an integer number (10798920).

Almost surely, 2^255555270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255555270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345565440).

255555270 is an abundant number, since it is smaller than the sum of its proper divisors (435575610).

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

255555270 is a wasteful number, since it uses less digits than its factorization.

255555270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13418 (or 13412 counting only the distinct ones).

The product of its (nonzero) digits is 87500, while the sum is 36.

The square root of 255555270 is about 15986.0961463392. The cubic root of 255555270 is about 634.5925176249.

The spelling of 255555270 in words is "two hundred fifty-five million, five hundred fifty-five thousand, two hundred seventy".