85541925317 has 2 divisors, whose sum is σ = 85541925318. Its totient is φ = 85541925316.

The previous prime is 85541925311. The next prime is 85541925349. The reversal of 85541925317 is 71352914558.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57334386916 + 28207538401 = 239446^2 + 167951^2 .

It is a cyclic number.

It is not a de Polignac number, because 85541925317 - 2¹² = 85541921221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85541925311) 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, 42770962658 + 42770962659.

It is an arithmetic number, because the mean of its divisors is an integer number (42770962659).

Almost surely, 2^85541925317 is an apocalyptic number.

It is an amenable number.

85541925317 is a deficient number, since it is larger than the sum of its proper divisors (1).

85541925317 is an equidigital number, since it uses as much as digits as its factorization.

85541925317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512000, while the sum is 50.

The spelling of 85541925317 in words is "eighty-five billion, five hundred forty-one million, nine hundred twenty-five thousand, three hundred seventeen".