55510605605551 has 8 divisors (see below), whose sum is σ = 59083662760704. Its totient is φ = 51971740385280.

The previous prime is 55510605605453. The next prime is 55510605605557. The reversal of 55510605605551 is 15550650601555.

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 55510605605551 - 2³⁹ = 54960849791663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55510605605495 and 55510605605504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55510605605557) 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, 8547980370 + ... + 8547986863.

It is an arithmetic number, because the mean of its divisors is an integer number (7385457845088).

Almost surely, 2^{55510605605551} is an apocalyptic number.

55510605605551 is a deficient number, since it is larger than the sum of its proper divisors (3573057155153).

55510605605551 is a wasteful number, since it uses less digits than its factorization.

55510605605551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17095967441.

The product of its (nonzero) digits is 2812500, while the sum is 49.

The spelling of 55510605605551 in words is "fifty-five trillion, five hundred ten billion, six hundred five million, six hundred five thousand, five hundred fifty-one".