55893651840 has 384 divisors, whose sum is σ = 210215023200. Its totient is φ = 13602226176.

The previous prime is 55893651839. The next prime is 55893651851. The reversal of 55893651840 is 4815639855.

55893651840 is a `hidden beast` number, since 5 + 5 + 89 + 3 + 6 + 518 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×55893651840² (a number of 22 digits) contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 6660127 + ... + 6668513.

Almost surely, 2^55893651840 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 55893651840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105107511600).

55893651840 is an abundant number, since it is smaller than the sum of its proper divisors (154321371360).

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

55893651840 is a wasteful number, since it uses less digits than its factorization.

55893651840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8514 (or 8499 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 54.

The spelling of 55893651840 in words is "fifty-five billion, eight hundred ninety-three million, six hundred fifty-one thousand, eight hundred forty".