256125703 has 2 divisors, whose sum is σ = 256125704. Its totient is φ = 256125702.

The previous prime is 256125697. The next prime is 256125739. The reversal of 256125703 is 307521652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 256125703 - 2¹⁷ = 255994631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256125403) 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 as a sum of consecutive naturals, namely, 128062851 + 128062852.

It is an arithmetic number, because the mean of its divisors is an integer number (128062852).

Almost surely, 2^256125703 is an apocalyptic number.

256125703 is a deficient number, since it is larger than the sum of its proper divisors (1).

256125703 is an equidigital number, since it uses as much as digits as its factorization.

256125703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 256125703 is about 16003.9277366526. The cubic root of 256125703 is about 635.0643314244.

The spelling of 256125703 in words is "two hundred fifty-six million, one hundred twenty-five thousand, seven hundred three".