255623073220 has 12 divisors (see below), whose sum is σ = 536808453804. Its totient is φ = 102249229280.

The previous prime is 255623073193. The next prime is 255623073227. The reversal of 255623073220 is 22370326552.

255623073220 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 148023328644 + 107599744576 = 384738^2 + 328024^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 255623073220.

It is not an unprimeable number, because it can be changed into a prime (255623073227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6390576811 + ... + 6390576850.

It is an arithmetic number, because the mean of its divisors is an integer number (44734037817).

Almost surely, 2^255623073220 is an apocalyptic number.

255623073220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255623073220 is an abundant number, since it is smaller than the sum of its proper divisors (281185380584).

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

255623073220 is a wasteful number, since it uses less digits than its factorization.

255623073220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12781153670 (or 12781153668 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 37.

Adding to 255623073220 its reverse (22370326552), we get a palindrome (277993399772).

The spelling of 255623073220 in words is "two hundred fifty-five billion, six hundred twenty-three million, seventy-three thousand, two hundred twenty".