255512512 has 56 divisors (see below), whose sum is σ = 519232896. Its totient is φ = 124723968.

The previous prime is 255512479. The next prime is 255512519. The reversal of 255512512 is 215215552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255512519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546903 + ... + 547369.

It is an arithmetic number, because the mean of its divisors is an integer number (9272016).

Almost surely, 2^255512512 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 255512512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259616448).

255512512 is an abundant number, since it is smaller than the sum of its proper divisors (263720384).

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

255512512 is a wasteful number, since it uses less digits than its factorization.

255512512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 655 counting only the distinct ones).

The product of its digits is 5000, while the sum is 28.

The square root of 255512512 is about 15984.7587407505. The cubic root of 255512512 is about 634.5571235588.

The spelling of 255512512 in words is "two hundred fifty-five million, five hundred twelve thousand, five hundred twelve".