255050640 has 320 divisors, whose sum is σ = 979937280. Its totient is φ = 60549120.

The previous prime is 255050639. The next prime is 255050647. The reversal of 255050640 is 46050552.

255050640 is a `hidden beast` number, since 2 + 550 + 50 + 64 + 0 = 666.

255050640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (255050647) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 870334 + ... + 870626.

It is an arithmetic number, because the mean of its divisors is an integer number (3062304).

Almost surely, 2^255050640 is an apocalyptic number.

255050640 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 255050640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (489968640).

255050640 is an abundant number, since it is smaller than the sum of its proper divisors (724886640).

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

255050640 is a wasteful number, since it uses less digits than its factorization.

255050640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 255050640 is about 15970.3049438638. The cubic root of 255050640 is about 634.1745448495.

The spelling of 255050640 in words is "two hundred fifty-five million, fifty thousand, six hundred forty".