80722556 has 12 divisors (see below), whose sum is σ = 142054920. Its totient is φ = 40135440.

The previous prime is 80722553. The next prime is 80722601. The reversal of 80722556 is 65522708.

It is a super-2 number, since 2×80722556² = 13032262094346272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80722553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55655 + ... + 57086.

It is an arithmetic number, because the mean of its divisors is an integer number (11837910).

Almost surely, 2^80722556 is an apocalyptic number.

It is an amenable number.

80722556 is a deficient number, since it is larger than the sum of its proper divisors (61332364).

80722556 is a wasteful number, since it uses less digits than its factorization.

80722556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112924 (or 112922 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 80722556 is about 8984.5732230307. The cubic root of 80722556 is about 432.1803016812.

The spelling of 80722556 in words is "eighty million, seven hundred twenty-two thousand, five hundred fifty-six".