255422784 has 112 divisors (see below), whose sum is σ = 703575936. Its totient is φ = 81715200.

The previous prime is 255422771. The next prime is 255422809. The reversal of 255422784 is 487224552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 558684 + ... + 559140.

It is an arithmetic number, because the mean of its divisors is an integer number (6281928).

Almost surely, 2^255422784 is an apocalyptic number.

255422784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255422784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351787968).

255422784 is an abundant number, since it is smaller than the sum of its proper divisors (448153152).

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

255422784 is a wasteful number, since it uses less digits than its factorization.

255422784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584 (or 574 counting only the distinct ones).

The product of its digits is 179200, while the sum is 39.

The square root of 255422784 is about 15981.9518207258. The cubic root of 255422784 is about 634.4828359929.

The spelling of 255422784 in words is "two hundred fifty-five million, four hundred twenty-two thousand, seven hundred eighty-four".