55605503506 has 48 divisors (see below), whose sum is σ = 98004012480. Its totient is φ = 23591100960.

The previous prime is 55605503497. The next prime is 55605503533. The reversal of 55605503506 is 60530550655.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19557321 + ... + 19560163.

It is an arithmetic number, because the mean of its divisors is an integer number (2041750260).

Almost surely, 2^55605503506 is an apocalyptic number.

55605503506 is a deficient number, since it is larger than the sum of its proper divisors (42398508974).

55605503506 is a wasteful number, since it uses less digits than its factorization.

55605503506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4799 (or 4792 counting only the distinct ones).

The product of its (nonzero) digits is 337500, while the sum is 40.

The spelling of 55605503506 in words is "fifty-five billion, six hundred five million, five hundred three thousand, five hundred six".