255806064 has 60 divisors (see below), whose sum is σ = 728059800. Its totient is φ = 83820672.

The previous prime is 255806059. The next prime is 255806081. The reversal of 255806064 is 460608552.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6559 + ... + 23550.

It is an arithmetic number, because the mean of its divisors is an integer number (12134330).

Almost surely, 2^255806064 is an apocalyptic number.

255806064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

255806064 is an abundant number, since it is smaller than the sum of its proper divisors (472253736).

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

255806064 is a wasteful number, since it uses less digits than its factorization.

255806064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30182 (or 30173 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 255806064 is about 15993.9383517631. The cubic root of 255806064 is about 634.8000395463.

The spelling of 255806064 in words is "two hundred fifty-five million, eight hundred six thousand, sixty-four".