256008547 has 2 divisors, whose sum is σ = 256008548. Its totient is φ = 256008546.

The previous prime is 256008503. The next prime is 256008563. The reversal of 256008547 is 745800652.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256008547 - 2⁷ = 256008419 is a prime.

It is a super-2 number, since 2×256008547² = 131080752274102418, which contains 22 as substring.

256008547 is a modest number, since divided by 8547 gives 256 as remainder.

It is not a weakly prime, because it can be changed into another prime (256002547) 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, 128004273 + 128004274.

It is an arithmetic number, because the mean of its divisors is an integer number (128004274).

Almost surely, 2^256008547 is an apocalyptic number.

256008547 is a deficient number, since it is larger than the sum of its proper divisors (1).

256008547 is an equidigital number, since it uses as much as digits as its factorization.

256008547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 256008547 is about 16000.2670915207. The cubic root of 256008547 is about 634.9674871236.

The spelling of 256008547 in words is "two hundred fifty-six million, eight thousand, five hundred forty-seven".