1995565 has 16 divisors (see below), whose sum is σ = 2814336. Its totient is φ = 1339200.

The previous prime is 1995547. The next prime is 1995583. The reversal of 1995565 is 5655991.

It is an interprime number because it is at equal distance from previous prime (1995547) and next prime (1995583).

It is not a de Polignac number, because 1995565 - 2⁵ = 1995533 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 681 + ... + 2110.

It is an arithmetic number, because the mean of its divisors is an integer number (175896).

2^1995565 is an apocalyptic number.

It is an amenable number.

1995565 is a deficient number, since it is larger than the sum of its proper divisors (818771).

1995565 is a wasteful number, since it uses less digits than its factorization.

1995565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820.

The product of its digits is 60750, while the sum is 40.

The square root of 1995565 is about 1412.6446828555. The cubic root of 1995565 is about 125.8989069023.

The spelling of 1995565 in words is "one million, nine hundred ninety-five thousand, five hundred sixty-five".