73505005 has 32 divisors (see below), whose sum is σ = 104203008. Its totient is φ = 48729600.

The previous prime is 73504993. The next prime is 73505063. The reversal of 73505005 is 50050537.

It is a happy number.

It is not a de Polignac number, because 73505005 - 2¹⁹ = 72980717 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 259594 + ... + 259876.

It is an arithmetic number, because the mean of its divisors is an integer number (3256344).

Almost surely, 2^73505005 is an apocalyptic number.

It is an amenable number.

73505005 is a deficient number, since it is larger than the sum of its proper divisors (30698003).

73505005 is a wasteful number, since it uses less digits than its factorization.

73505005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517.

The product of its (nonzero) digits is 2625, while the sum is 25.

The square root of 73505005 is about 8573.5059922998. The cubic root of 73505005 is about 418.8954442421.

The spelling of 73505005 in words is "seventy-three million, five hundred five thousand, five".