255767660 has 24 divisors (see below), whose sum is σ = 542653440. Its totient is φ = 101251584.

The previous prime is 255767627. The next prime is 255767663. The reversal of 255767660 is 66767552.

It is not an unprimeable number, because it can be changed into a prime (255767663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63980 + ... + 67859.

It is an arithmetic number, because the mean of its divisors is an integer number (22610560).

Almost surely, 2^255767660 is an apocalyptic number.

255767660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255767660 is an abundant number, since it is smaller than the sum of its proper divisors (286885780).

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

255767660 is a wasteful number, since it uses less digits than its factorization.

255767660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131945 (or 131943 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 44.

The square root of 255767660 is about 15992.7377268559. The cubic root of 255767660 is about 634.7682705824.

The spelling of 255767660 in words is "two hundred fifty-five million, seven hundred sixty-seven thousand, six hundred sixty".