255250302780 has 48 divisors (see below), whose sum is σ = 779673654144. Its totient is φ = 61878861120.

The previous prime is 255250302763. The next prime is 255250302803. The reversal of 255250302780 is 87203052552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193370782 + ... + 193372101.

It is an arithmetic number, because the mean of its divisors is an integer number (16243201128).

Almost surely, 2^255250302780 is an apocalyptic number.

255250302780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255250302780 is an abundant number, since it is smaller than the sum of its proper divisors (524423351364).

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

255250302780 is a wasteful number, since it uses less digits than its factorization.

255250302780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386742906 (or 386742904 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 39.

The spelling of 255250302780 in words is "two hundred fifty-five billion, two hundred fifty million, three hundred two thousand, seven hundred eighty".