55835653856 has 192 divisors, whose sum is σ = 121861635840. Its totient is φ = 25090560000.

The previous prime is 55835653849. The next prime is 55835653871. The reversal of 55835653856 is 65835653855.

It is a junction number, because it is equal to n+sod(n) for n = 55835653795 and 55835653804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168687611 + ... + 168687941.

It is an arithmetic number, because the mean of its divisors is an integer number (634696020).

Almost surely, 2^55835653856 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 55835653856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60930817920).

55835653856 is an abundant number, since it is smaller than the sum of its proper divisors (66025981984).

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

55835653856 is a wasteful number, since it uses less digits than its factorization.

55835653856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 561 counting only the distinct ones).

The product of its digits is 64800000, while the sum is 59.

Subtracting 55835653856 from its reverse (65835653855), we obtain a palindrome (9999999999).

The spelling of 55835653856 in words is "fifty-five billion, eight hundred thirty-five million, six hundred fifty-three thousand, eight hundred fifty-six".