256068757 has 12 divisors (see below), whose sum is σ = 313554720. Its totient is φ = 207934776.

The previous prime is 256068721. The next prime is 256068767. The reversal of 256068757 is 757860652.

256068757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 256068757 - 2¹¹ = 256066709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256068767) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136593 + ... + 138454.

It is an arithmetic number, because the mean of its divisors is an integer number (26129560).

Almost surely, 2^256068757 is an apocalyptic number.

It is an amenable number.

256068757 is a deficient number, since it is larger than the sum of its proper divisors (57485963).

256068757 is a wasteful number, since it uses less digits than its factorization.

256068757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275080 (or 275073 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 46.

The square root of 256068757 is about 16002.1485119968. The cubic root of 256068757 is about 635.0172620186.

It can be divided in two parts, 2560 and 68757, that added together give a palindrome (71317).

The spelling of 256068757 in words is "two hundred fifty-six million, sixty-eight thousand, seven hundred fifty-seven".