55235020654220 has 384 divisors, whose sum is σ = 136599913562112. Its totient is φ = 18556833715200.

The previous prime is 55235020654217. The next prime is 55235020654267. The reversal of 55235020654220 is 2245602053255.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 15313283657 + ... + 15313287263.

It is an arithmetic number, because the mean of its divisors is an integer number (355728941568).

Almost surely, 2^{55235020654220} 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 55235020654220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68299956781056).

55235020654220 is an abundant number, since it is smaller than the sum of its proper divisors (81364892907892).

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

55235020654220 is a wasteful number, since it uses less digits than its factorization.

55235020654220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4261 (or 4259 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 41.

The spelling of 55235020654220 in words is "fifty-five trillion, two hundred thirty-five billion, twenty million, six hundred fifty-four thousand, two hundred twenty".