5644545556 has 12 divisors (see below), whose sum is σ = 10637797492. Its totient is φ = 2605174848.

The previous prime is 5644545551. The next prime is 5644545589. The reversal of 5644545556 is 6555454465.

It can be written as a sum of positive squares in 2 ways, for example, as 525143056 + 5119402500 = 22916^2 + 71550^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5644545551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54274425 + ... + 54274528.

Almost surely, 2^5644545556 is an apocalyptic number.

It is an amenable number.

5644545556 is a deficient number, since it is larger than the sum of its proper divisors (4993251936).

5644545556 is a wasteful number, since it uses less digits than its factorization.

5644545556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108548970 (or 108548968 counting only the distinct ones).

The product of its digits is 7200000, while the sum is 49.

The square root of 5644545556 is about 75130.1907091949. The cubic root of 5644545556 is about 1780.5041659863.

The spelling of 5644545556 in words is "five billion, six hundred forty-four million, five hundred forty-five thousand, five hundred fifty-six".