255320504520 has 64 divisors (see below), whose sum is σ = 782258584320. Its totient is φ = 66636839424.

The previous prime is 255320504507. The next prime is 255320504521. The reversal of 255320504520 is 25405023552.

255320504520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (255320504521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22629157 + ... + 22640436.

It is an arithmetic number, because the mean of its divisors is an integer number (12222790380).

Almost surely, 2^255320504520 is an apocalyptic number.

255320504520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255320504520 is an abundant number, since it is smaller than the sum of its proper divisors (526938079800).

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

255320504520 is a wasteful number, since it uses less digits than its factorization.

255320504520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45269654 (or 45269650 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 33.

The spelling of 255320504520 in words is "two hundred fifty-five billion, three hundred twenty million, five hundred four thousand, five hundred twenty".