805513225 has 24 divisors (see below), whose sum is σ = 1094483520. Its totient is φ = 583224000.

The previous prime is 805513217. The next prime is 805513229. The reversal of 805513225 is 522315508.

It is not a de Polignac number, because 805513225 - 2³ = 805513217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (805513229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56580 + ... + 69370.

It is an arithmetic number, because the mean of its divisors is an integer number (45603480).

Almost surely, 2^805513225 is an apocalyptic number.

It is an amenable number.

805513225 is a deficient number, since it is larger than the sum of its proper divisors (288970295).

805513225 is a wasteful number, since it uses less digits than its factorization.

805513225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13041 (or 13036 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 805513225 is about 28381.5648793367. The cubic root of 805513225 is about 930.4453969383.

The spelling of 805513225 in words is "eight hundred five million, five hundred thirteen thousand, two hundred twenty-five".