5563721156 has 96 divisors (see below), whose sum is σ = 11868831744. Its totient is φ = 2231712000.

The previous prime is 5563721153. The next prime is 5563721161. The reversal of 5563721156 is 6511273655.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (5563721153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4519061 + ... + 4520291.

It is an arithmetic number, because the mean of its divisors is an integer number (123633664).

Almost surely, 2^5563721156 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 5563721156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5934415872).

5563721156 is an abundant number, since it is smaller than the sum of its proper divisors (6305110588).

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

5563721156 is a wasteful number, since it uses less digits than its factorization.

5563721156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441 (or 1439 counting only the distinct ones).

The product of its digits is 189000, while the sum is 41.

The square root of 5563721156 is about 74590.3556500437. The cubic root of 5563721156 is about 1771.9649150501.

The spelling of 5563721156 in words is "five billion, five hundred sixty-three million, seven hundred twenty-one thousand, one hundred fifty-six".