5520063644 has 6 divisors (see below), whose sum is σ = 9660111384. Its totient is φ = 2760031820.

The previous prime is 5520063631. The next prime is 5520063677. The reversal of 5520063644 is 4463600255.

It is a happy number.

It is a super-2 number, since 2×5520063644² = 60942205267621117472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690007952 + ... + 690007959.

It is an arithmetic number, because the mean of its divisors is an integer number (1610018564).

Almost surely, 2^5520063644 is an apocalyptic number.

It is an amenable number.

5520063644 is a deficient number, since it is larger than the sum of its proper divisors (4140047740).

5520063644 is a wasteful number, since it uses less digits than its factorization.

5520063644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380015915 (or 1380015913 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 5520063644 is about 74297.1307925145. The cubic root of 5520063644 is about 1767.3179766498.

Adding to 5520063644 its reverse (4463600255), we get a palindrome (9983663899).

The spelling of 5520063644 in words is "five billion, five hundred twenty million, sixty-three thousand, six hundred forty-four".