55853898480 has 480 divisors, whose sum is σ = 203358055680. Its totient is φ = 13686865920.

The previous prime is 55853898461. The next prime is 55853898509. The reversal of 55853898480 is 8489835855.

55853898480 is a `hidden beast` number, since 5 + 5 + 8 + 538 + 98 + 4 + 8 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 178446804 + ... + 178447116.

It is an arithmetic number, because the mean of its divisors is an integer number (423662616).

Almost surely, 2^55853898480 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 55853898480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101679027840).

55853898480 is an abundant number, since it is smaller than the sum of its proper divisors (147504157200).

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

55853898480 is a wasteful number, since it uses less digits than its factorization.

55853898480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 55296000, while the sum is 63.

The spelling of 55853898480 in words is "fifty-five billion, eight hundred fifty-three million, eight hundred ninety-eight thousand, four hundred eighty".