256535654059 has 2 divisors, whose sum is σ = 256535654060. Its totient is φ = 256535654058.

The previous prime is 256535654017. The next prime is 256535654069. The reversal of 256535654059 is 950456535652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256535654059 - 2¹¹ = 256535652011 is a prime.

It is not a weakly prime, because it can be changed into another prime (256535654009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128267827029 + 128267827030.

It is an arithmetic number, because the mean of its divisors is an integer number (128267827030).

Almost surely, 2^256535654059 is an apocalyptic number.

256535654059 is a deficient number, since it is larger than the sum of its proper divisors (1).

256535654059 is an equidigital number, since it uses as much as digits as its factorization.

256535654059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300000, while the sum is 55.

The spelling of 256535654059 in words is "two hundred fifty-six billion, five hundred thirty-five million, six hundred fifty-four thousand, fifty-nine".