55551050605556 has 24 divisors (see below), whose sum is σ = 107329740717024. Its totient is φ = 24946254925280.

The previous prime is 55551050605549. The next prime is 55551050605597. The reversal of 55551050605556 is 65550605015555.

It is a junction number, because it is equal to n+sod(n) for n = 55551050605498 and 55551050605507.

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, 7605561875 + ... + 7605569178.

It is an arithmetic number, because the mean of its divisors is an integer number (4472072529876).

Almost surely, 2^{55551050605556} is an apocalyptic number.

It is an amenable number.

55551050605556 is a deficient number, since it is larger than the sum of its proper divisors (51778690111468).

55551050605556 is a wasteful number, since it uses less digits than its factorization.

55551050605556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15211131151 (or 15211131149 counting only the distinct ones).

The product of its (nonzero) digits is 14062500, while the sum is 53.

The spelling of 55551050605556 in words is "fifty-five trillion, five hundred fifty-one billion, fifty million, six hundred five thousand, five hundred fifty-six".