256055536 has 80 divisors (see below), whose sum is σ = 567392256. Its totient is φ = 110880000.

The previous prime is 256055531. The next prime is 256055551. The reversal of 256055536 is 635550652.

It is a junction number, because it is equal to n+sod(n) for n = 256055495 and 256055504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256055531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387046 + ... + 387706.

Almost surely, 2^256055536 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 256055536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283696128).

256055536 is an abundant number, since it is smaller than the sum of its proper divisors (311336720).

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

256055536 is a wasteful number, since it uses less digits than its factorization.

256055536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782 (or 776 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 37.

The square root of 256055536 is about 16001.7354058865. The cubic root of 256055536 is about 635.0063330428.

The spelling of 256055536 in words is "two hundred fifty-six million, fifty-five thousand, five hundred thirty-six".