201256256 has 56 divisors (see below), whose sum is σ = 425744640. Its totient is φ = 94172672.

The previous prime is 201256207. The next prime is 201256261. The reversal of 201256256 is 652652102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67730 + ... + 70638.

Almost surely, 2^201256256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201256256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212872320).

201256256 is an abundant number, since it is smaller than the sum of its proper divisors (224488384).

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

201256256 is a wasteful number, since it uses less digits than its factorization.

201256256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2991 (or 2981 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 201256256 is about 14186.4814524251. The cubic root of 201256256 is about 586.0254311475.

The spelling of 201256256 in words is "two hundred one million, two hundred fifty-six thousand, two hundred fifty-six".