256500760 has 64 divisors (see below), whose sum is σ = 643269600. Its totient is φ = 91478016.

The previous prime is 256500733. The next prime is 256500767. The reversal of 256500760 is 67005652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256500767) 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, 2994 + ... + 22846.

Almost surely, 2^256500760 is an apocalyptic number.

256500760 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 256500760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321634800).

256500760 is an abundant number, since it is smaller than the sum of its proper divisors (386768840).

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

256500760 is a wasteful number, since it uses less digits than its factorization.

256500760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19900 (or 19896 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 256500760 is about 16015.6411048700. The cubic root of 256500760 is about 635.3741651670.

The spelling of 256500760 in words is "two hundred fifty-six million, five hundred thousand, seven hundred sixty".