2002563895 has 4 divisors (see below), whose sum is σ = 2403076680. Its totient is φ = 1602051112.

The previous prime is 2002563889. The next prime is 2002563917. The reversal of 2002563895 is 5983652002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5983652002 = 2 ⋅2991826001.

It is a cyclic number.

It is not a de Polignac number, because 2002563895 - 2⁵ = 2002563863 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200256385 + ... + 200256394.

It is an arithmetic number, because the mean of its divisors is an integer number (600769170).

Almost surely, 2^2002563895 is an apocalyptic number.

2002563895 is a deficient number, since it is larger than the sum of its proper divisors (400512785).

2002563895 is an equidigital number, since it uses as much as digits as its factorization.

2002563895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400512784.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 2002563895 is about 44750.0155865895. The cubic root of 2002563895 is about 1260.4592042119.

The spelling of 2002563895 in words is "two billion, two million, five hundred sixty-three thousand, eight hundred ninety-five".