248565859 has 2 divisors, whose sum is σ = 248565860. Its totient is φ = 248565858.

The previous prime is 248565841. The next prime is 248565869. The reversal of 248565859 is 958565842.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 248565859 - 2¹¹ = 248563811 is a prime.

It is not a weakly prime, because it can be changed into another prime (248565869) 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, 124282929 + 124282930.

It is an arithmetic number, because the mean of its divisors is an integer number (124282930).

Almost surely, 2^248565859 is an apocalyptic number.

248565859 is a deficient number, since it is larger than the sum of its proper divisors (1).

248565859 is an equidigital number, since it uses as much as digits as its factorization.

248565859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456000, while the sum is 52.

The square root of 248565859 is about 15765.9715526827. The cubic root of 248565859 is about 628.7536111947.

The spelling of 248565859 in words is "two hundred forty-eight million, five hundred sixty-five thousand, eight hundred fifty-nine".