80505922 has 12 divisors (see below), whose sum is σ = 140474790. Its totient is φ = 34502496.

The previous prime is 80505917. The next prime is 80505923. The reversal of 80505922 is 22950508.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 58967041 + 21538881 = 7679^2 + 4641^2 .

It is not an unprimeable number, because it can be changed into a prime (80505923) 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 in 5 ways as a sum of consecutive naturals, for example, 410647 + ... + 410842.

Almost surely, 2^80505922 is an apocalyptic number.

80505922 is a deficient number, since it is larger than the sum of its proper divisors (59968868).

80505922 is a wasteful number, since it uses less digits than its factorization.

80505922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821505 (or 821498 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 80505922 is about 8972.5092365514. The cubic root of 80505922 is about 431.7933432294.

The spelling of 80505922 in words is "eighty million, five hundred five thousand, nine hundred twenty-two".