1995339563 has 8 divisors (see below), whose sum is σ = 2281374432. Its totient is φ = 1709551296.

The previous prime is 1995339559. The next prime is 1995339607. The reversal of 1995339563 is 3659335991.

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

It is a cyclic number.

It is not a de Polignac number, because 1995339563 - 2² = 1995339559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1995339523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43970 + ... + 76967.

It is an arithmetic number, because the mean of its divisors is an integer number (285171804).

Almost surely, 2^1995339563 is an apocalyptic number.

1995339563 is a deficient number, since it is larger than the sum of its proper divisors (286034869).

1995339563 is a wasteful number, since it uses less digits than its factorization.

1995339563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123301.

The product of its digits is 2952450, while the sum is 53.

The square root of 1995339563 is about 44669.2238907282. The cubic root of 1995339563 is about 1258.9416583220.

The spelling of 1995339563 in words is "one billion, nine hundred ninety-five million, three hundred thirty-nine thousand, five hundred sixty-three".