55051220004340 has 96 divisors (see below), whose sum is σ = 133362945999360. Its totient is φ = 18697631003136.

The previous prime is 55051220004337. The next prime is 55051220004359. The reversal of 55051220004340 is 4340002215055.

55051220004340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73071609 + ... + 73821151.

It is an arithmetic number, because the mean of its divisors is an integer number (1389197354160).

Almost surely, 2^{55051220004340} 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 55051220004340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66681472999680).

55051220004340 is an abundant number, since it is smaller than the sum of its proper divisors (78311725995020).

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

55051220004340 is a wasteful number, since it uses less digits than its factorization.

55051220004340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754481 (or 754479 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 55051220004340 its reverse (4340002215055), we get a palindrome (59391222219395).

The spelling of 55051220004340 in words is "fifty-five trillion, fifty-one billion, two hundred twenty million, four thousand, three hundred forty".