256111200 has 288 divisors, whose sum is σ = 944939520. Its totient is φ = 66931200.

The previous prime is 256111169. The next prime is 256111213. The reversal of 256111200 is 2111652.

256111200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1533517 + ... + 1533683.

It is an arithmetic number, because the mean of its divisors is an integer number (3281040).

Almost surely, 2^256111200 is an apocalyptic number.

256111200 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 256111200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (472469760).

256111200 is an abundant number, since it is smaller than the sum of its proper divisors (688828320).

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

256111200 is a wasteful number, since it uses less digits than its factorization.

256111200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 256111200 is about 16003.4746227187. The cubic root of 256111200 is about 635.0523444564.

Adding to 256111200 its reverse (2111652), we get a palindrome (258222852).

The spelling of 256111200 in words is "two hundred fifty-six million, one hundred eleven thousand, two hundred".