55043604483840 has 1728 divisors, whose sum is σ = 234710025338880. Its totient is φ = 12085889679360.

The previous prime is 55043604483737. The next prime is 55043604483859. The reversal of 55043604483840 is 4838440634055.

55043604483840 is a `hidden beast` number, since 5 + 50 + 4 + 36 + 0 + 4 + 483 + 84 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1728).

It is a super-2 number, since 2×55043604483840² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 9381896587 + ... + 9381902453.

It is an arithmetic number, because the mean of its divisors is an integer number (135827560960).

Almost surely, 2^{55043604483840} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55043604483840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117355012669440).

55043604483840 is an abundant number, since it is smaller than the sum of its proper divisors (179666420855040).

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

55043604483840 is a wasteful number, since it uses less digits than its factorization.

55043604483840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6080 (or 6054 counting only the distinct ones).

The product of its (nonzero) digits is 22118400, while the sum is 54.

The spelling of 55043604483840 in words is "fifty-five trillion, forty-three billion, six hundred four million, four hundred eighty-three thousand, eight hundred forty".