285225303973 has 2 divisors, whose sum is σ = 285225303974. Its totient is φ = 285225303972.

The previous prime is 285225303953. The next prime is 285225304031. The reversal of 285225303973 is 379303522582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 280087568289 + 5137735684 = 529233^2 + 71678^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285225303973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285225303953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142612651986 + 142612651987.

It is an arithmetic number, because the mean of its divisors is an integer number (142612651987).

Almost surely, 2^285225303973 is an apocalyptic number.

It is an amenable number.

285225303973 is a deficient number, since it is larger than the sum of its proper divisors (1).

285225303973 is an equidigital number, since it uses as much as digits as its factorization.

285225303973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2721600, while the sum is 49.

The spelling of 285225303973 in words is "two hundred eighty-five billion, two hundred twenty-five million, three hundred three thousand, nine hundred seventy-three".