55561056055 has 16 divisors (see below), whose sum is σ = 70711591680. Its totient is φ = 41765248512.

The previous prime is 55561056043. The next prime is 55561056073. The reversal of 55561056055 is 55065016555.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55561056055 is a prime.

It is a congruent number.

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, 486840 + ... + 590029.

It is an arithmetic number, because the mean of its divisors is an integer number (4419474480).

Almost surely, 2^55561056055 is an apocalyptic number.

55561056055 is a deficient number, since it is larger than the sum of its proper divisors (15150535625).

55561056055 is a wasteful number, since it uses less digits than its factorization.

55561056055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077498.

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 55561056055 in words is "fifty-five billion, five hundred sixty-one million, fifty-six thousand, fifty-five".