255845980 has 48 divisors (see below), whose sum is σ = 579791520. Its totient is φ = 94272768.

The previous prime is 255845927. The next prime is 255845983. The reversal of 255845980 is 89548552.

It is a self number, because there is not a number n which added to its sum of digits gives 255845980.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255845983) by changing a digit.

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, 214947 + ... + 216133.

It is an arithmetic number, because the mean of its divisors is an integer number (12078990).

Almost surely, 2^255845980 is an apocalyptic number.

255845980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255845980 is an abundant number, since it is smaller than the sum of its proper divisors (323945540).

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

255845980 is a wasteful number, since it uses less digits than its factorization.

255845980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038 (or 2036 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 46.

The square root of 255845980 is about 15995.1861508393. The cubic root of 255845980 is about 634.8330559131.

The spelling of 255845980 in words is "two hundred fifty-five million, eight hundred forty-five thousand, nine hundred eighty".