2117993055 has 16 divisors (see below), whose sum is σ = 3391039104. Its totient is φ = 1128846240.

The previous prime is 2117993041. The next prime is 2117993069. The reversal of 2117993055 is 5503997112.

It is an interprime number because it is at equal distance from previous prime (2117993041) and next prime (2117993069).

It is not a de Polignac number, because 2117993055 - 2¹³ = 2117984863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2117992998 and 2117993016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23149 + ... + 69078.

It is an arithmetic number, because the mean of its divisors is an integer number (211939944).

Almost surely, 2^2117993055 is an apocalyptic number.

2117993055 is a deficient number, since it is larger than the sum of its proper divisors (1273046049).

2117993055 is a wasteful number, since it uses less digits than its factorization.

2117993055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93766.

The product of its (nonzero) digits is 85050, while the sum is 42.

The square root of 2117993055 is about 46021.6585424732. The cubic root of 2117993055 is about 1284.2261547131.

The spelling of 2117993055 in words is "two billion, one hundred seventeen million, nine hundred ninety-three thousand, fifty-five".