55404081024 has 128 divisors (see below), whose sum is σ = 153688769280. Its totient is φ = 17650913280.

The previous prime is 55404081023. The next prime is 55404081049. The reversal of 55404081024 is 42018040455.

It is a happy number.

55404081024 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 (128).

It is a super-2 number, since 2×55404081024² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55404081023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20285739 + ... + 20288469.

It is an arithmetic number, because the mean of its divisors is an integer number (1200693510).

Almost surely, 2^55404081024 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 55404081024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76844384640).

55404081024 is an abundant number, since it is smaller than the sum of its proper divisors (98284688256).

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

55404081024 is a wasteful number, since it uses less digits than its factorization.

55404081024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5068 (or 5056 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 33.

The spelling of 55404081024 in words is "fifty-five billion, four hundred four million, eighty-one thousand, twenty-four".