55510440984 has 96 divisors (see below), whose sum is σ = 153975478800. Its totient is φ = 18056908800.

The previous prime is 55510440977. The next prime is 55510440989. The reversal of 55510440984 is 48904401555.

55510440984 is a `hidden beast` number, since 5 + 5 + 510 + 4 + 40 + 98 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55510440989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3710832 + ... + 3725760.

Almost surely, 2^55510440984 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 55510440984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76987739400).

55510440984 is an abundant number, since it is smaller than the sum of its proper divisors (98465037816).

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

55510440984 is a wasteful number, since it uses less digits than its factorization.

55510440984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16185 (or 16178 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 45.

The spelling of 55510440984 in words is "fifty-five billion, five hundred ten million, four hundred forty thousand, nine hundred eighty-four".