805225061 has 4 divisors (see below), whose sum is σ = 806964672. Its totient is φ = 803485452.

The previous prime is 805225051. The next prime is 805225063. The reversal of 805225061 is 160522508.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 805225061 - 2²² = 801030757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805225063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869111 + ... + 870036.

It is an arithmetic number, because the mean of its divisors is an integer number (201741168).

Almost surely, 2^805225061 is an apocalyptic number.

It is an amenable number.

805225061 is a deficient number, since it is larger than the sum of its proper divisors (1739611).

805225061 is a wasteful number, since it uses less digits than its factorization.

805225061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739610.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 805225061 is about 28376.4878200245. The cubic root of 805225061 is about 930.3344313088.

Adding to 805225061 its reverse (160522508), we get a palindrome (965747569).

The spelling of 805225061 in words is "eight hundred five million, two hundred twenty-five thousand, sixty-one".