55510010505561 has 8 divisors (see below), whose sum is σ = 74024047577664. Its totient is φ = 37001323551920.

The previous prime is 55510010505517. The next prime is 55510010505589. The reversal of 55510010505561 is 16550501001555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55510010505561 - 2¹⁹ = 55510009981273 is a prime.

It is a super-2 number, since 2×55510010505561² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55510010505661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1337505405 + ... + 1337546906.

It is an arithmetic number, because the mean of its divisors is an integer number (9253005947208).

Almost surely, 2^{55510010505561} is an apocalyptic number.

It is an amenable number.

55510010505561 is a deficient number, since it is larger than the sum of its proper divisors (18514037072103).

55510010505561 is a wasteful number, since it uses less digits than its factorization.

55510010505561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2675059231.

The product of its (nonzero) digits is 93750, while the sum is 39.

The spelling of 55510010505561 in words is "fifty-five trillion, five hundred ten billion, ten million, five hundred five thousand, five hundred sixty-one".