256530862 has 16 divisors (see below), whose sum is σ = 449995392. Its totient is φ = 107384760.

The previous prime is 256530851. The next prime is 256530863. The reversal of 256530862 is 268035652.

It is a happy number.

256530862 is digitally balanced in base 3, 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 (256530863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212464 + ... + 213667.

It is an arithmetic number, because the mean of its divisors is an integer number (28124712).

Almost surely, 2^256530862 is an apocalyptic number.

256530862 is a deficient number, since it is larger than the sum of its proper divisors (193464530).

256530862 is a wasteful number, since it uses less digits than its factorization.

256530862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426183.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 256530862 is about 16016.5808461107. The cubic root of 256530862 is about 635.3990192649.

The spelling of 256530862 in words is "two hundred fifty-six million, five hundred thirty thousand, eight hundred sixty-two".