5538381056 has 72 divisors (see below), whose sum is σ = 12024128424. Its totient is φ = 2530713600.

The previous prime is 5538381049. The next prime is 5538381059. The reversal of 5538381056 is 6501838355.

It can be written as a sum of positive squares in 4 ways, for example, as 862009600 + 4676371456 = 29360^2 + 68384^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5538380998 and 5538381016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5538381059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327890 + ... + 344366.

Almost surely, 2^5538381056 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 5538381056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6012064212).

5538381056 is an abundant number, since it is smaller than the sum of its proper divisors (6485747368).

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

5538381056 is a wasteful number, since it uses less digits than its factorization.

5538381056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16607 (or 16593 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 44.

The square root of 5538381056 is about 74420.3000262697. The cubic root of 5538381056 is about 1769.2706684828.

The spelling of 5538381056 in words is "five billion, five hundred thirty-eight million, three hundred eighty-one thousand, fifty-six".