256530616 has 16 divisors (see below), whose sum is σ = 484457400. Its totient is φ = 127341984.

The previous prime is 256530587. The next prime is 256530623. The reversal of 256530616 is 616035652.

256530616 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114235 + ... + 116458.

Almost surely, 2^256530616 is an apocalyptic number.

It is an amenable number.

256530616 is a deficient number, since it is larger than the sum of its proper divisors (227926784).

256530616 is a wasteful number, since it uses less digits than its factorization.

256530616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230838 (or 230834 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 256530616 is about 16016.5731665672. The cubic root of 256530616 is about 635.3988161598.

The spelling of 256530616 in words is "two hundred fifty-six million, five hundred thirty thousand, six hundred sixteen".