255406056 has 96 divisors (see below), whose sum is σ = 691286400. Its totient is φ = 78577920.

The previous prime is 255406033. The next prime is 255406061. The reversal of 255406056 is 650604552.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 354865 + ... + 355583.

It is an arithmetic number, because the mean of its divisors is an integer number (7200900).

Almost surely, 2^255406056 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 255406056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345643200).

255406056 is an abundant number, since it is smaller than the sum of its proper divisors (435880344).

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

255406056 is a wasteful number, since it uses less digits than its factorization.

255406056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807 (or 784 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 255406056 is about 15981.4284718232. The cubic root of 255406056 is about 634.4689846305.

The spelling of 255406056 in words is "two hundred fifty-five million, four hundred six thousand, fifty-six".