19995205 has 8 divisors (see below), whose sum is σ = 24028704. Its totient is φ = 15973200.

The previous prime is 19995169. The next prime is 19995253. The reversal of 19995205 is 50259991.

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

It is not a de Polignac number, because 19995205 - 2¹¹ = 19993157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1590 + ... + 6520.

It is an arithmetic number, because the mean of its divisors is an integer number (3003588).

Almost surely, 2^19995205 is an apocalyptic number.

It is an amenable number.

19995205 is a deficient number, since it is larger than the sum of its proper divisors (4033499).

19995205 is an equidigital number, since it uses as much as digits as its factorization.

19995205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5747.

The product of its (nonzero) digits is 36450, while the sum is 40.

The square root of 19995205 is about 4471.5998255658. The cubic root of 19995205 is about 271.4200672049.

The spelling of 19995205 in words is "nineteen million, nine hundred ninety-five thousand, two hundred five".