255550020 has 48 divisors (see below), whose sum is σ = 780591168. Its totient is φ = 61951360.

The previous prime is 255550013. The next prime is 255550021. The reversal of 255550020 is 20055552.

255550020 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 (255550021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192939 + ... + 194258.

It is an arithmetic number, because the mean of its divisors is an integer number (16262316).

Almost surely, 2^255550020 is an apocalyptic number.

255550020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255550020 is an abundant number, since it is smaller than the sum of its proper divisors (525041148).

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

255550020 is a wasteful number, since it uses less digits than its factorization.

255550020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387220 (or 387218 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 255550020 is about 15985.9319403030. The cubic root of 255550020 is about 634.5881720111.

The spelling of 255550020 in words is "two hundred fifty-five million, five hundred fifty thousand, twenty".