255312512 has 128 divisors (see below), whose sum is σ = 653909760. Its totient is φ = 96509952.

The previous prime is 255312493. The next prime is 255312517. The reversal of 255312512 is 215213552.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (255312517) by changing a digit.

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, 267428 + ... + 268380.

It is an arithmetic number, because the mean of its divisors is an integer number (5108670).

Almost surely, 2^255312512 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 255312512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326954880).

255312512 is an abundant number, since it is smaller than the sum of its proper divisors (398597248).

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

255312512 is a wasteful number, since it uses less digits than its factorization.

255312512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010 (or 998 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 255312512 is about 15978.5015567793. The cubic root of 255312512 is about 634.3915158148.

The spelling of 255312512 in words is "two hundred fifty-five million, three hundred twelve thousand, five hundred twelve".