55238680825020 has 576 divisors, whose sum is σ = 209440930922496. Its totient is φ = 11448626780160.

The previous prime is 55238680825019. The next prime is 55238680825033. The reversal of 55238680825020 is 2052808683255.

55238680825020 is a `hidden beast` number, since 5 + 5 + 2 + 386 + 8 + 0 + 8 + 250 + 2 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 15416878149 + ... + 15416881731.

It is an arithmetic number, because the mean of its divisors is an integer number (363612727296).

Almost surely, 2^{55238680825020} 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 55238680825020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104720465461248).

55238680825020 is an abundant number, since it is smaller than the sum of its proper divisors (154202250097476).

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

55238680825020 is a wasteful number, since it uses less digits than its factorization.

55238680825020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6170 (or 6165 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 54.

The spelling of 55238680825020 in words is "fifty-five trillion, two hundred thirty-eight billion, six hundred eighty million, eight hundred twenty-five thousand, twenty".