255443064540 has 96 divisors (see below), whose sum is σ = 773426755584. Its totient is φ = 62747120640.

The previous prime is 255443064517. The next prime is 255443064581. The reversal of 255443064540 is 45460344552.

It is a happy number.

255443064540 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 255443064492 and 255443064501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2616256 + ... + 2712135.

It is an arithmetic number, because the mean of its divisors is an integer number (8056528704).

Almost surely, 2^255443064540 is an apocalyptic number.

255443064540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255443064540 is an abundant number, since it is smaller than the sum of its proper divisors (517983691044).

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

255443064540 is a wasteful number, since it uses less digits than its factorization.

255443064540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5328467 (or 5328465 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 42.

The spelling of 255443064540 in words is "two hundred fifty-five billion, four hundred forty-three million, sixty-four thousand, five hundred forty".