55517130724448 has 24 divisors (see below), whose sum is σ = 109299549849840. Its totient is φ = 27758514889600.

The previous prime is 55517130724423. The next prime is 55517130724481. The reversal of 55517130724448 is 84442703171555.

It is a super-3 number, since 3×55517130724448³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 55517130724393 and 55517130724402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21484373 + ... + 23929323.

It is an arithmetic number, because the mean of its divisors is an integer number (4554147910410).

Almost surely, 2^{55517130724448} is an apocalyptic number.

It is an amenable number.

55517130724448 is a deficient number, since it is larger than the sum of its proper divisors (53782419125392).

55517130724448 is a wasteful number, since it uses less digits than its factorization.

55517130724448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3154550 (or 3154542 counting only the distinct ones).

The product of its (nonzero) digits is 18816000, while the sum is 56.

The spelling of 55517130724448 in words is "fifty-five trillion, five hundred seventeen billion, one hundred thirty million, seven hundred twenty-four thousand, four hundred forty-eight".