5381612556 has 24 divisors (see below), whose sum is σ = 12896478000. Its totient is φ = 1745387712.

The previous prime is 5381612549. The next prime is 5381612557. The reversal of 5381612556 is 6552161835.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (5381612557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6059931 + ... + 6060818.

It is an arithmetic number, because the mean of its divisors is an integer number (537353250).

Almost surely, 2^5381612556 is an apocalyptic number.

It is an amenable number.

5381612556 is an abundant number, since it is smaller than the sum of its proper divisors (7514865444).

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

5381612556 is a wasteful number, since it uses less digits than its factorization.

5381612556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12120793 (or 12120791 counting only the distinct ones).

The product of its digits is 216000, while the sum is 42.

The square root of 5381612556 is about 73359.4748890694. The cubic root of 5381612556 is about 1752.4170742940.

The spelling of 5381612556 in words is "five billion, three hundred eighty-one million, six hundred twelve thousand, five hundred fifty-six".