805502 has 4 divisors (see below), whose sum is σ = 1208256. Its totient is φ = 402750.

The previous prime is 805501. The next prime is 805507. The reversal of 805502 is 205508.

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

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 805502.

It is not an unprimeable number, because it can be changed into a prime (805501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201374 + ... + 201377.

It is an arithmetic number, because the mean of its divisors is an integer number (302064).

2⁸⁰⁵⁵⁰² is an apocalyptic number.

805502 is a deficient number, since it is larger than the sum of its proper divisors (402754).

805502 is a wasteful number, since it uses less digits than its factorization.

805502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402753.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 805502 is about 897.4976323089. The cubic root of 805502 is about 93.0441074933.

The spelling of 805502 in words is "eight hundred five thousand, five hundred two".