55505561011105 has 32 divisors (see below), whose sum is σ = 68737455521280. Its totient is φ = 43003910983680.

The previous prime is 55505561011099. The next prime is 55505561011133. The reversal of 55505561011105 is 50111016550555.

It is a happy number.

It is not a de Polignac number, because 55505561011105 - 2³ = 55505561011097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128370766 + ... + 128802424.

It is an arithmetic number, because the mean of its divisors is an integer number (2148045485040).

Almost surely, 2^{55505561011105} is an apocalyptic number.

It is an amenable number.

55505561011105 is a deficient number, since it is larger than the sum of its proper divisors (13231894510175).

55505561011105 is a wasteful number, since it uses less digits than its factorization.

55505561011105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437449.

The product of its (nonzero) digits is 93750, while the sum is 40.

The spelling of 55505561011105 in words is "fifty-five trillion, five hundred five billion, five hundred sixty-one million, eleven thousand, one hundred five".