80755072 has 16 divisors (see below), whose sum is σ = 160879500. Its totient is φ = 40377472.

The previous prime is 80755067. The next prime is 80755079. The reversal of 80755072 is 27055708.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80755079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315322 + ... + 315577.

Almost surely, 2^80755072 is an apocalyptic number.

It is an amenable number.

80755072 is a deficient number, since it is larger than the sum of its proper divisors (80124428).

80755072 is an equidigital number, since it uses as much as digits as its factorization.

80755072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630913 (or 630901 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 80755072 is about 8986.3825870035. The cubic root of 80755072 is about 432.2383230032.

The spelling of 80755072 in words is "eighty million, seven hundred fifty-five thousand, seventy-two".