2650662563 has 4 divisors (see below), whose sum is σ = 2652342840. Its totient is φ = 2648982288.

The previous prime is 2650662493. The next prime is 2650662571. The reversal of 2650662563 is 3652660562.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2650662563 - 2²⁰ = 2649613987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2650662563.

It is not an unprimeable number, because it can be changed into a prime (2650664563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837770 + ... + 840927.

It is an arithmetic number, because the mean of its divisors is an integer number (663085710).

Almost surely, 2^2650662563 is an apocalyptic number.

2650662563 is a deficient number, since it is larger than the sum of its proper divisors (1680277).

2650662563 is a wasteful number, since it uses less digits than its factorization.

2650662563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680276.

The product of its (nonzero) digits is 388800, while the sum is 41.

The square root of 2650662563 is about 51484.5856834839. The cubic root of 2650662563 is about 1383.9428239589.

The spelling of 2650662563 in words is "two billion, six hundred fifty million, six hundred sixty-two thousand, five hundred sixty-three".