5556728444 has 24 divisors (see below), whose sum is σ = 9826010208. Its totient is φ = 2749376000.

The previous prime is 5556728431. The next prime is 5556728453. The reversal of 5556728444 is 4448276555.

It is a super-2 number, since 2×5556728444² = 61754462000717322272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5556728392 and 5556728401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282944 + ... + 301944.

It is an arithmetic number, because the mean of its divisors is an integer number (409417092).

Almost surely, 2^5556728444 is an apocalyptic number.

It is an amenable number.

5556728444 is a deficient number, since it is larger than the sum of its proper divisors (4269281764).

5556728444 is a wasteful number, since it uses less digits than its factorization.

5556728444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19765 (or 19763 counting only the distinct ones).

The product of its digits is 5376000, while the sum is 50.

The square root of 5556728444 is about 74543.4668096407. The cubic root of 5556728444 is about 1771.2222445298. Note that the first 4 decimals are identical.

The spelling of 5556728444 in words is "five billion, five hundred fifty-six million, seven hundred twenty-eight thousand, four hundred forty-four".