256060019 has 2 divisors, whose sum is σ = 256060020. Its totient is φ = 256060018.

The previous prime is 256059971. The next prime is 256060027. The reversal of 256060019 is 910060652.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256060019 is a prime.

It is a super-2 number, since 2×256060019² = 131133466660560722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 256059973 and 256060000.

It is not a weakly prime, because it can be changed into another prime (256060099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128030009 + 128030010.

It is an arithmetic number, because the mean of its divisors is an integer number (128030010).

Almost surely, 2^256060019 is an apocalyptic number.

256060019 is a deficient number, since it is larger than the sum of its proper divisors (1).

256060019 is an equidigital number, since it uses as much as digits as its factorization.

256060019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 256060019 is about 16001.8754838300. The cubic root of 256060019 is about 635.0100389014.

The spelling of 256060019 in words is "two hundred fifty-six million, sixty thousand, nineteen".