255556680 has 64 divisors (see below), whose sum is σ = 800012160. Its totient is φ = 65184768.

The previous prime is 255556667. The next prime is 255556681. The reversal of 255556680 is 86655552.

It is not an unprimeable number, because it can be changed into a prime (255556681) 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, 43537 + ... + 49056.

It is an arithmetic number, because the mean of its divisors is an integer number (12500190).

Almost surely, 2^255556680 is an apocalyptic number.

255556680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255556680 is an abundant number, since it is smaller than the sum of its proper divisors (544455480).

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

255556680 is a wasteful number, since it uses less digits than its factorization.

255556680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92630 (or 92626 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 42.

The square root of 255556680 is about 15986.1402471015. The cubic root of 255556680 is about 634.5936847224.

The spelling of 255556680 in words is "two hundred fifty-five million, five hundred fifty-six thousand, six hundred eighty".