255779264 has 112 divisors (see below), whose sum is σ = 578973696. Its totient is φ = 111283200.

The previous prime is 255779239. The next prime is 255779281. The reversal of 255779264 is 462977552.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1212119 + ... + 1212329.

It is an arithmetic number, because the mean of its divisors is an integer number (5169408).

Almost surely, 2^255779264 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 255779264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289486848).

255779264 is an abundant number, since it is smaller than the sum of its proper divisors (323194432).

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

255779264 is a wasteful number, since it uses less digits than its factorization.

255779264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 304 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 47.

The square root of 255779264 is about 15993.1005124085. The cubic root of 255779264 is about 634.7778701015. Note that the first 3 decimals are identical.

The spelling of 255779264 in words is "two hundred fifty-five million, seven hundred seventy-nine thousand, two hundred sixty-four".