256714564 has 12 divisors (see below), whose sum is σ = 458809344. Its totient is φ = 125626184.

The previous prime is 256714561. The next prime is 256714589. The reversal of 256714564 is 465417652.

It is a happy number.

256714564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (256714561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682564 + ... + 682939.

It is an arithmetic number, because the mean of its divisors is an integer number (38234112).

Almost surely, 2^256714564 is an apocalyptic number.

It is an amenable number.

256714564 is a deficient number, since it is larger than the sum of its proper divisors (202094780).

256714564 is a wasteful number, since it uses less digits than its factorization.

256714564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365554 (or 1365552 counting only the distinct ones).

The product of its digits is 201600, while the sum is 40.

The square root of 256714564 is about 16022.3145643818. The cubic root of 256714564 is about 635.5506530277.

The spelling of 256714564 in words is "two hundred fifty-six million, seven hundred fourteen thousand, five hundred sixty-four".