85351559 has 2 divisors, whose sum is σ = 85351560. Its totient is φ = 85351558.

The previous prime is 85351537. The next prime is 85351589. The reversal of 85351559 is 95515358.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85351559 - 2¹⁶ = 85286023 is a prime.

It is a Sophie Germain prime.

It is equal to p_4962974 and since 85351559 and 4962974 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85351589) 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, 42675779 + 42675780.

It is an arithmetic number, because the mean of its divisors is an integer number (42675780).

Almost surely, 2^85351559 is an apocalyptic number.

85351559 is a deficient number, since it is larger than the sum of its proper divisors (1).

85351559 is an equidigital number, since it uses as much as digits as its factorization.

85351559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 135000, while the sum is 41.

The square root of 85351559 is about 9238.5907475112. The cubic root of 85351559 is about 440.2883079471.

The spelling of 85351559 in words is "eighty-five million, three hundred fifty-one thousand, five hundred fifty-nine".