2105555107 has 2 divisors, whose sum is σ = 2105555108. Its totient is φ = 2105555106.

The previous prime is 2105555093. The next prime is 2105555131. The reversal of 2105555107 is 7015555012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2105555107 - 2¹⁹ = 2105030819 is a prime.

It is a super-2 number, since 2×2105555107² = 8866724617227562898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2105555407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052777553 + 1052777554.

It is an arithmetic number, because the mean of its divisors is an integer number (1052777554).

Almost surely, 2^2105555107 is an apocalyptic number.

2105555107 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105555107 is an equidigital number, since it uses as much as digits as its factorization.

2105555107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8750, while the sum is 31.

The square root of 2105555107 is about 45886.3281054390. The cubic root of 2105555107 is about 1281.7073381367.

The spelling of 2105555107 in words is "two billion, one hundred five million, five hundred fifty-five thousand, one hundred seven".