805523061 has 32 divisors (see below), whose sum is σ = 1241856000. Its totient is φ = 454933440.

The previous prime is 805523057. The next prime is 805523063. The reversal of 805523061 is 160325508.

It is not a de Polignac number, because 805523061 - 2² = 805523057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805523063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 959680 + ... + 960518.

It is an arithmetic number, because the mean of its divisors is an integer number (38808000).

Almost surely, 2^805523061 is an apocalyptic number.

It is an amenable number.

805523061 is a deficient number, since it is larger than the sum of its proper divisors (436332939).

805523061 is a wasteful number, since it uses less digits than its factorization.

805523061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 805523061 is about 28381.7381603030. The cubic root of 805523061 is about 930.4491840988.

Adding to 805523061 its reverse (160325508), we get a palindrome (965848569).

The spelling of 805523061 in words is "eight hundred five million, five hundred twenty-three thousand, sixty-one".