255075040 has 96 divisors (see below), whose sum is σ = 675337824. Its totient is φ = 90224640.

The previous prime is 255075031. The next prime is 255075091. The reversal of 255075040 is 40570552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63162 + ... + 67078.

It is an arithmetic number, because the mean of its divisors is an integer number (7034769).

Almost surely, 2^255075040 is an apocalyptic number.

255075040 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 255075040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337668912).

255075040 is an abundant number, since it is smaller than the sum of its proper divisors (420262784).

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

255075040 is a wasteful number, since it uses less digits than its factorization.

255075040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3980 (or 3972 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 255075040 is about 15971.0688433805. The cubic root of 255075040 is about 634.1947674550.

The spelling of 255075040 in words is "two hundred fifty-five million, seventy-five thousand, forty".