19960505 has 8 divisors (see below), whose sum is σ = 24042624. Its totient is φ = 15908400.

The previous prime is 19960459. The next prime is 19960511. The reversal of 19960505 is 50506991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19960505 - 2⁶ = 19960441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6011 + ... + 8720.

It is an arithmetic number, because the mean of its divisors is an integer number (3005328).

Almost surely, 2^19960505 is an apocalyptic number.

It is an amenable number.

19960505 is a deficient number, since it is larger than the sum of its proper divisors (4082119).

19960505 is a wasteful number, since it uses less digits than its factorization.

19960505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15007.

The product of its (nonzero) digits is 12150, while the sum is 35.

The square root of 19960505 is about 4467.7180976422. The cubic root of 19960505 is about 271.2629673768.

The spelling of 19960505 in words is "nineteen million, nine hundred sixty thousand, five hundred five".