80365005 has 24 divisors (see below), whose sum is σ = 159199872. Its totient is φ = 36738144.

The previous prime is 80364997. The next prime is 80365049. The reversal of 80365005 is 50056308.

80365005 is a `hidden beast` number, since 8 + 0 + 3 + 650 + 0 + 5 = 666.

It is not a de Polignac number, because 80365005 - 2³ = 80364997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80365005.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 127249 + ... + 127878.

It is an arithmetic number, because the mean of its divisors is an integer number (6633328).

Almost surely, 2^80365005 is an apocalyptic number.

It is an amenable number.

80365005 is a deficient number, since it is larger than the sum of its proper divisors (78834867).

80365005 is a wasteful number, since it uses less digits than its factorization.

80365005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255145 (or 255142 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 80365005 is about 8964.6530886588. The cubic root of 80365005 is about 431.5412600796.

It can be divided in two parts, 8036 and 5005, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 80365005 in words is "eighty million, three hundred sixty-five thousand, five".