255556944 has 100 divisors (see below), whose sum is σ = 743283156. Its totient is φ = 84768768.

The previous prime is 255556943. The next prime is 255556957. The reversal of 255556944 is 449655552.

255556944 is a `hidden beast` number, since 2 + 5 + 5 + 556 + 94 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 174556944 + 81000000 = 13212^2 + 9000^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 255556944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255556943) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 379392 + ... + 380064.

Almost surely, 2^255556944 is an apocalyptic number.

255556944 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 255556944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371641578).

255556944 is an abundant number, since it is smaller than the sum of its proper divisors (487726212).

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

255556944 is a wasteful number, since it uses less digits than its factorization.

255556944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986 (or 971 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 45.

The square root of 255556944 is about 15986.1485042520. The cubic root of 255556944 is about 634.5939032424.

The spelling of 255556944 in words is "two hundred fifty-five million, five hundred fifty-six thousand, nine hundred forty-four".