256705750 has 48 divisors (see below), whose sum is σ = 550641312. Its totient is φ = 87783600.

The previous prime is 256705727. The next prime is 256705753. The reversal of 256705750 is 57507652.

256705750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256705753) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 670059 + ... + 670441.

It is an arithmetic number, because the mean of its divisors is an integer number (11471694).

Almost surely, 2^256705750 is an apocalyptic number.

256705750 is an abundant number, since it is smaller than the sum of its proper divisors (293935562).

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

256705750 is an frugal number, since it uses more digits than its factorization.

256705750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 37.

The square root of 256705750 is about 16022.0395081275. The cubic root of 256705750 is about 635.5433793103.

The spelling of 256705750 in words is "two hundred fifty-six million, seven hundred five thousand, seven hundred fifty".