5563123456 has 144 divisors (see below), whose sum is σ = 12582864000. Its totient is φ = 2432471040.

The previous prime is 5563123439. The next prime is 5563123477. The reversal of 5563123456 is 6543213655.

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, 11148295 + ... + 11148793.

It is an arithmetic number, because the mean of its divisors is an integer number (87381000).

Almost surely, 2^5563123456 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 5563123456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6291432000).

5563123456 is an abundant number, since it is smaller than the sum of its proper divisors (7019740544).

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

5563123456 is a wasteful number, since it uses less digits than its factorization.

5563123456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670 (or 656 counting only the distinct ones).

The product of its digits is 324000, while the sum is 40.

The square root of 5563123456 is about 74586.3489922921. The cubic root of 5563123456 is about 1771.9014598356.

The spelling of 5563123456 in words is "five billion, five hundred sixty-three million, one hundred twenty-three thousand, four hundred fifty-six".