1563634048 has 64 divisors (see below), whose sum is σ = 3270528000. Its totient is φ = 743662080.

The previous prime is 1563634043. The next prime is 1563634049. The reversal of 1563634048 is 8404363651.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 1563634048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1563634043) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 230773 + ... + 237451.

It is an arithmetic number, because the mean of its divisors is an integer number (51102000).

Almost surely, 2^1563634048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1563634048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1635264000).

1563634048 is an abundant number, since it is smaller than the sum of its proper divisors (1706893952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1563634048 is an equidigital number, since it uses as much as digits as its factorization.

1563634048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6783 (or 6771 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 1563634048 is about 39542.8128488604. The cubic root of 1563634048 is about 1160.6778756874.

Adding to 1563634048 its reverse (8404363651), we get a palindrome (9967997699).

The spelling of 1563634048 in words is "one billion, five hundred sixty-three million, six hundred thirty-four thousand, forty-eight".