85552859291 has 2 divisors, whose sum is σ = 85552859292. Its totient is φ = 85552859290.

The previous prime is 85552859263. The next prime is 85552859299. The reversal of 85552859291 is 19295825558.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85552859291 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85552859291.

It is not a weakly prime, because it can be changed into another prime (85552859299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42776429645 + 42776429646.

It is an arithmetic number, because the mean of its divisors is an integer number (42776429646).

Almost surely, 2^85552859291 is an apocalyptic number.

85552859291 is a deficient number, since it is larger than the sum of its proper divisors (1).

85552859291 is an equidigital number, since it uses as much as digits as its factorization.

85552859291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960000, while the sum is 59.

The spelling of 85552859291 in words is "eighty-five billion, five hundred fifty-two million, eight hundred fifty-nine thousand, two hundred ninety-one".