255145660 has 96 divisors (see below), whose sum is σ = 683730432. Its totient is φ = 77656320.

The previous prime is 255145643. The next prime is 255145691. The reversal of 255145660 is 66541552.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 64294 + ... + 68146.

It is an arithmetic number, because the mean of its divisors is an integer number (7122192).

Almost surely, 2^255145660 is an apocalyptic number.

255145660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255145660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341865216).

255145660 is an abundant number, since it is smaller than the sum of its proper divisors (428584772).

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

255145660 is a wasteful number, since it uses less digits than its factorization.

255145660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3923 (or 3921 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 255145660 is about 15973.2795630703. The cubic root of 255145660 is about 634.2532897130.

The spelling of 255145660 in words is "two hundred fifty-five million, one hundred forty-five thousand, six hundred sixty".