805250003 has 4 divisors (see below), whose sum is σ = 805768080. Its totient is φ = 804731928.

The previous prime is 805249957. The next prime is 805250009. The reversal of 805250003 is 300052508.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 805250003 - 2¹⁴ = 805233619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (805250009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256700 + ... + 259817.

It is an arithmetic number, because the mean of its divisors is an integer number (201442020).

Almost surely, 2^805250003 is an apocalyptic number.

805250003 is a deficient number, since it is larger than the sum of its proper divisors (518077).

805250003 is a wasteful number, since it uses less digits than its factorization.

805250003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518076.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 805250003 is about 28376.9273001853. The cubic root of 805250003 is about 930.3440369719.

The spelling of 805250003 in words is "eight hundred five million, two hundred fifty thousand, three".