80504221 has 4 divisors (see below), whose sum is σ = 92004832. Its totient is φ = 69003612.

The previous prime is 80504219. The next prime is 80504287. The reversal of 80504221 is 12240508.

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 80504221 - 2¹ = 80504219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80504192 and 80504201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80504321) 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, 5750295 + ... + 5750308.

It is an arithmetic number, because the mean of its divisors is an integer number (23001208).

Almost surely, 2^80504221 is an apocalyptic number.

It is an amenable number.

80504221 is a deficient number, since it is larger than the sum of its proper divisors (11500611).

80504221 is a wasteful number, since it uses less digits than its factorization.

80504221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11500610.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 80504221 is about 8972.4144465133. The cubic root of 80504221 is about 431.7903021047.

Adding to 80504221 its reverse (12240508), we get a palindrome (92744729).

The spelling of 80504221 in words is "eighty million, five hundred four thousand, two hundred twenty-one".