255626420020 has 48 divisors (see below), whose sum is σ = 539772097536. Its totient is φ = 101687696000.

The previous prime is 255626420011. The next prime is 255626420057. The reversal of 255626420020 is 20024626552.

255626420020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×255626420020² (a number of 24 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 19746750 + ... + 19759690.

It is an arithmetic number, because the mean of its divisors is an integer number (11245252032).

Almost surely, 2^255626420020 is an apocalyptic number.

255626420020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255626420020 is an abundant number, since it is smaller than the sum of its proper divisors (284145677516).

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

255626420020 is a wasteful number, since it uses less digits than its factorization.

255626420020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18312 (or 18310 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 255626420020 in words is "two hundred fifty-five billion, six hundred twenty-six million, four hundred twenty thousand, twenty".