255520512 has 216 divisors, whose sum is σ = 837018000. Its totient is φ = 74317824.

The previous prime is 255520511. The next prime is 255520567. The reversal of 255520512 is 215025552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255520511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 568864 + ... + 569312.

Almost surely, 2^255520512 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 255520512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (418509000).

255520512 is an abundant number, since it is smaller than the sum of its proper divisors (581497488).

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

255520512 is a wasteful number, since it uses less digits than its factorization.

255520512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 255520512 is about 15985.0089771636. The cubic root of 255520512 is about 634.5637460708.

The spelling of 255520512 in words is "two hundred fifty-five million, five hundred twenty thousand, five hundred twelve".