850258485 has 32 divisors (see below), whose sum is σ = 1600490880. Its totient is φ = 426795264.

The previous prime is 850258481. The next prime is 850258547. The reversal of 850258485 is 584852058.

It is not a de Polignac number, because 850258485 - 2² = 850258481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 850258485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850258481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182947 + ... + 187536.

It is an arithmetic number, because the mean of its divisors is an integer number (50015340).

Almost surely, 2^850258485 is an apocalyptic number.

850258485 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

850258485 is a deficient number, since it is larger than the sum of its proper divisors (750232395).

850258485 is a wasteful number, since it uses less digits than its factorization.

850258485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370514 (or 370508 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 45.

The square root of 850258485 is about 29159.1921184384. The cubic root of 850258485 is about 947.3642488778.

The spelling of 850258485 in words is "eight hundred fifty million, two hundred fifty-eight thousand, four hundred eighty-five".