255491288912 has 20 divisors (see below), whose sum is σ = 497527141716. Its totient is φ = 127097187840.

The previous prime is 255491288869. The next prime is 255491288929. The reversal of 255491288912 is 219882194552.

255491288912 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 243013505296 + 12477783616 = 492964^2 + 111704^2 .

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40525289 + ... + 40531592.

Almost surely, 2^255491288912 is an apocalyptic number.

It is an amenable number.

255491288912 is a deficient number, since it is larger than the sum of its proper divisors (242035852804).

255491288912 is a wasteful number, since it uses less digits than its factorization.

255491288912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81057086 (or 81057080 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 56.

The spelling of 255491288912 in words is "two hundred fifty-five billion, four hundred ninety-one million, two hundred eighty-eight thousand, nine hundred twelve".