255285756 has 120 divisors (see below), whose sum is σ = 737662464. Its totient is φ = 76338720.

The previous prime is 255285707. The next prime is 255285773. The reversal of 255285756 is 657582552.

255285756 is a `hidden beast` number, since 2 + 55 + 28 + 575 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 295381 + ... + 296243.

Almost surely, 2^255285756 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255285756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368831232).

255285756 is an abundant number, since it is smaller than the sum of its proper divisors (482376708).

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

255285756 is a wasteful number, since it uses less digits than its factorization.

255285756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973 (or 962 counting only the distinct ones).

The product of its digits is 840000, while the sum is 45.

The square root of 255285756 is about 15977.6642848697. The cubic root of 255285756 is about 634.3693542526.

The spelling of 255285756 in words is "two hundred fifty-five million, two hundred eighty-five thousand, seven hundred fifty-six".