256225270 has 32 divisors (see below), whose sum is σ = 528853248. Its totient is φ = 87555168.

The previous prime is 256225223. The next prime is 256225271. The reversal of 256225270 is 72522652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256225271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15529 + ... + 27451.

It is an arithmetic number, because the mean of its divisors is an integer number (16526664).

Almost surely, 2^256225270 is an apocalyptic number.

256225270 is an abundant number, since it is smaller than the sum of its proper divisors (272627978).

256225270 is a wasteful number, since it uses less digits than its factorization.

256225270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12244.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 256225270 is about 16007.0381395185. The cubic root of 256225270 is about 635.1466129731.

The spelling of 256225270 in words is "two hundred fifty-six million, two hundred twenty-five thousand, two hundred seventy".