55554287040 has 252 divisors, whose sum is σ = 222281486856. Its totient is φ = 12698090496.

The previous prime is 55554287039. The next prime is 55554287057. The reversal of 55554287040 is 4078245555.

55554287040 is a `hidden beast` number, since 5 + 5 + 554 + 28 + 70 + 4 + 0 = 666.

55554287040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (252).

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 polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 55714 + ... + 337953.

Almost surely, 2^55554287040 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 55554287040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111140743428).

55554287040 is an abundant number, since it is smaller than the sum of its proper divisors (166727199816).

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

55554287040 is a wasteful number, since it uses less digits than its factorization.

55554287040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393704 (or 393684 counting only the distinct ones).

The product of its (nonzero) digits is 1120000, while the sum is 45.

The spelling of 55554287040 in words is "fifty-five billion, five hundred fifty-four million, two hundred eighty-seven thousand, forty".