255623222620 has 24 divisors (see below), whose sum is σ = 541733623200. Its totient is φ = 101311221312.

The previous prime is 255623222531. The next prime is 255623222689. The reversal of 255623222620 is 26222326552.

255623222620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 255623222620.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 58627000 + ... + 58631359.

It is an arithmetic number, because the mean of its divisors is an integer number (22572234300).

Almost surely, 2^255623222620 is an apocalyptic number.

255623222620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255623222620 is an abundant number, since it is smaller than the sum of its proper divisors (286110400580).

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

255623222620 is a wasteful number, since it uses less digits than its factorization.

255623222620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117258477 (or 117258475 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 255623222620 in words is "two hundred fifty-five billion, six hundred twenty-three million, two hundred twenty-two thousand, six hundred twenty".