55510110105561 has 12 divisors (see below), whose sum is σ = 80181336456000. Its totient is φ = 37006709468760.

The previous prime is 55510110105349. The next prime is 55510110105617. The reversal of 55510110105561 is 16550101101555.

55510110105561 is a `hidden beast` number, since 55 + 51 + 0 + 1 + 1 + 0 + 1 + 0 + 556 + 1 = 666.

It is not a de Polignac number, because 55510110105561 - 2³¹ = 55507962621913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55510110100561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16174356 + ... + 19303626.

It is an arithmetic number, because the mean of its divisors is an integer number (6681778038000).

Almost surely, 2^{55510110105561} is an apocalyptic number.

It is an amenable number.

55510110105561 is a deficient number, since it is larger than the sum of its proper divisors (24671226350439).

55510110105561 is a wasteful number, since it uses less digits than its factorization.

55510110105561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100276 (or 5100273 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 36.

The spelling of 55510110105561 in words is "fifty-five trillion, five hundred ten billion, one hundred ten million, one hundred five thousand, five hundred sixty-one".