55055355018717 has 32 divisors (see below), whose sum is σ = 77443899840000. Its totient is φ = 34693884522432.

The previous prime is 55055355018683. The next prime is 55055355018761. The reversal of 55055355018717 is 71781055355055.

It is not a de Polignac number, because 55055355018717 - 2¹⁰ = 55055355017693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55055355018767) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120740518 + ... + 121195640.

It is an arithmetic number, because the mean of its divisors is an integer number (2420121870000).

Almost surely, 2^{55055355018717} is an apocalyptic number.

55055355018717 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

55055355018717 is a deficient number, since it is larger than the sum of its proper divisors (22388544821283).

55055355018717 is a wasteful number, since it uses less digits than its factorization.

55055355018717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459897.

The product of its (nonzero) digits is 18375000, while the sum is 57.

The spelling of 55055355018717 in words is "fifty-five trillion, fifty-five billion, three hundred fifty-five million, eighteen thousand, seven hundred seventeen".