256610570 has 16 divisors (see below), whose sum is σ = 465988680. Its totient is φ = 101735424.

The previous prime is 256610569. The next prime is 256610573. The reversal of 256610570 is 75016652.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 126810121 + 129800449 = 11261^2 + 11393^2 .

It is not an unprimeable number, because it can be changed into a prime (256610573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112415 + ... + 114674.

Almost surely, 2^256610570 is an apocalyptic number.

256610570 is a deficient number, since it is larger than the sum of its proper divisors (209378110).

256610570 is a wasteful number, since it uses less digits than its factorization.

256610570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227209.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 256610570 is about 16019.0689492242. The cubic root of 256610570 is about 635.4648217964.

The spelling of 256610570 in words is "two hundred fifty-six million, six hundred ten thousand, five hundred seventy".