55181753003520 has 1600 divisors, whose sum is σ = 237865255024320. Its totient is φ = 12046919270400.

The previous prime is 55181753003519. The next prime is 55181753003537. The reversal of 55181753003520 is 2530035718155.

55181753003520 is a `hidden beast` number, since 5 + 5 + 1 + 81 + 7 + 530 + 0 + 35 + 2 + 0 = 666.

It is a super-2 number, since 2×55181753003520² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1215728986 + ... + 1215774374.

Almost surely, 2^{55181753003520} 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 55181753003520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118932627512160).

55181753003520 is an abundant number, since it is smaller than the sum of its proper divisors (182683502020800).

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

55181753003520 is a wasteful number, since it uses less digits than its factorization.

55181753003520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45489 (or 45464 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 45.

The spelling of 55181753003520 in words is "fifty-five trillion, one hundred eighty-one billion, seven hundred fifty-three million, three thousand, five hundred twenty".