55344556523520 has 3240 divisors, whose sum is σ = 234678683165472. Its totient is φ = 12486668451840.

The previous prime is 55344556523519. The next prime is 55344556523551. The reversal of 55344556523520 is 2532565544355.

55344556523520 is a `hidden beast` number, since 5 + 5 + 3 + 4 + 4 + 5 + 565 + 23 + 52 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3240).

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 215 ways as a sum of consecutive naturals, for example, 1495798824942 + ... + 1495798824978.

Almost surely, 2^{55344556523520} 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 55344556523520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117339341582736).

55344556523520 is an abundant number, since it is smaller than the sum of its proper divisors (179334126641952).

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

55344556523520 is an frugal number, since it uses more digits than its factorization.

55344556523520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 54000000, while the sum is 54.

The spelling of 55344556523520 in words is "fifty-five trillion, three hundred forty-four billion, five hundred fifty-six million, five hundred twenty-three thousand, five hundred twenty".