55654398720 has 432 divisors, whose sum is σ = 214630547040. Its totient is φ = 13232111616.

The previous prime is 55654398697. The next prime is 55654398731. The reversal of 55654398720 is 2789345655.

55654398720 is a `hidden beast` number, since 5 + 5 + 6 + 543 + 98 + 7 + 2 + 0 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3713482 + ... + 3728438.

It is an arithmetic number, because the mean of its divisors is an integer number (496829970).

Almost surely, 2^55654398720 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 55654398720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107315273520).

55654398720 is an abundant number, since it is smaller than the sum of its proper divisors (158976148320).

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

55654398720 is a wasteful number, since it uses less digits than its factorization.

55654398720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15020 (or 15003 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 54.

The spelling of 55654398720 in words is "fifty-five billion, six hundred fifty-four million, three hundred ninety-eight thousand, seven hundred twenty".