255894660 has 288 divisors, whose sum is σ = 976752000. Its totient is φ = 55302912.

The previous prime is 255894629. The next prime is 255894689. The reversal of 255894660 is 66498552.

255894660 is a `hidden beast` number, since 2 + 5 + 589 + 4 + 6 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 502486 + ... + 502994.

It is an arithmetic number, because the mean of its divisors is an integer number (3391500).

Almost surely, 2^255894660 is an apocalyptic number.

255894660 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 255894660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488376000).

255894660 is an abundant number, since it is smaller than the sum of its proper divisors (720857340).

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

255894660 is a wasteful number, since it uses less digits than its factorization.

255894660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 255894660 is about 15996.7077862915. The cubic root of 255894660 is about 634.8733167416.

The spelling of 255894660 in words is "two hundred fifty-five million, eight hundred ninety-four thousand, six hundred sixty".