80755911 has 6 divisors (see below), whose sum is σ = 116647440. Its totient is φ = 53837268.

The previous prime is 80755903. The next prime is 80755943. The reversal of 80755911 is 11955708.

It is not a de Polignac number, because 80755911 - 2³ = 80755903 is a prime.

It is a super-2 number, since 2×80755911² = 13043034322879842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80755951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4486431 + ... + 4486448.

It is an arithmetic number, because the mean of its divisors is an integer number (19441240).

Almost surely, 2^80755911 is an apocalyptic number.

80755911 is a deficient number, since it is larger than the sum of its proper divisors (35891529).

80755911 is a wasteful number, since it uses less digits than its factorization.

80755911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8972885 (or 8972882 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 36.

The square root of 80755911 is about 8986.4292686250. The cubic root of 80755911 is about 432.2398199028.

The spelling of 80755911 in words is "eighty million, seven hundred fifty-five thousand, nine hundred eleven".