55236722235656 has 64 divisors (see below), whose sum is σ = 112926267417600. Its totient is φ = 25177945881600.

The previous prime is 55236722235619. The next prime is 55236722235683. The reversal of 55236722235656 is 65653222763255.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55236722235595 and 55236722235604.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7241585 + ... + 12763776.

It is an arithmetic number, because the mean of its divisors is an integer number (1764472928400).

Almost surely, 2^{55236722235656} is an apocalyptic number.

It is an amenable number.

55236722235656 is an abundant number, since it is smaller than the sum of its proper divisors (57689545181944).

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

55236722235656 is a wasteful number, since it uses less digits than its factorization.

55236722235656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20005710 (or 20005706 counting only the distinct ones).

The product of its digits is 136080000, while the sum is 59.

The spelling of 55236722235656 in words is "fifty-five trillion, two hundred thirty-six billion, seven hundred twenty-two million, two hundred thirty-five thousand, six hundred fifty-six".