255505052980 has 12 divisors (see below), whose sum is σ = 536560611300. Its totient is φ = 102202021184.

The previous prime is 255505052969. The next prime is 255505052989. The reversal of 255505052980 is 89250505552.

It can be written as a sum of positive squares in 2 ways, for example, as 129833384976 + 125671668004 = 360324^2 + 354502^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 255505052980.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255505052989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6387626305 + ... + 6387626344.

It is an arithmetic number, because the mean of its divisors is an integer number (44713384275).

Almost surely, 2^255505052980 is an apocalyptic number.

255505052980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255505052980 is an abundant number, since it is smaller than the sum of its proper divisors (281055558320).

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

255505052980 is a wasteful number, since it uses less digits than its factorization.

255505052980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12775252658 (or 12775252656 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 46.

The spelling of 255505052980 in words is "two hundred fifty-five billion, five hundred five million, fifty-two thousand, nine hundred eighty".