55505601055056 has 40 divisors (see below), whose sum is σ = 143395663786560. Its totient is φ = 18501067741696.

The previous prime is 55505601055013. The next prime is 55505601055063. The reversal of 55505601055056 is 65055010650555.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 55505601054996 and 55505601055014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23854185 + ... + 26077448.

It is an arithmetic number, because the mean of its divisors is an integer number (3584891594664).

Almost surely, 2^{55505601055056} is an apocalyptic number.

It is an amenable number.

55505601055056 is an abundant number, since it is smaller than the sum of its proper divisors (87890062731504).

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

55505601055056 is a wasteful number, since it uses less digits than its factorization.

55505601055056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49954803 (or 49954797 counting only the distinct ones).

The product of its (nonzero) digits is 2812500, while the sum is 48.

The spelling of 55505601055056 in words is "fifty-five trillion, five hundred five billion, six hundred one million, fifty-five thousand, fifty-six".