56105055555550 has 48 divisors (see below), whose sum is σ = 106784455536000. Its totient is φ = 21919666739040.

The previous prime is 56105055555541. The next prime is 56105055555551. The reversal of 56105055555550 is 5555555050165.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56105055555551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116933439 + ... + 117412261.

It is an arithmetic number, because the mean of its divisors is an integer number (2224676157000).

Almost surely, 2^{56105055555550} is an apocalyptic number.

56105055555550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56105055555550 is a deficient number, since it is larger than the sum of its proper divisors (50679399980450).

56105055555550 is a wasteful number, since it uses less digits than its factorization.

56105055555550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533377 (or 533372 counting only the distinct ones).

The product of its (nonzero) digits is 11718750, while the sum is 52.

The spelling of 56105055555550 in words is "fifty-six trillion, one hundred five billion, fifty-five million, five hundred fifty-five thousand, five hundred fifty".