2105132555 has 4 divisors (see below), whose sum is σ = 2526159072. Its totient is φ = 1684106040.

The previous prime is 2105132539. The next prime is 2105132581. The reversal of 2105132555 is 5552315012.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2105132555 - 2⁴ = 2105132539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210513251 + ... + 210513260.

It is an arithmetic number, because the mean of its divisors is an integer number (631539768).

Almost surely, 2^2105132555 is an apocalyptic number.

2105132555 is a deficient number, since it is larger than the sum of its proper divisors (421026517).

2105132555 is an equidigital number, since it uses as much as digits as its factorization.

2105132555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421026516.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 2105132555 is about 45881.7235399892. The cubic root of 2105132555 is about 1281.6215928574.

Adding to 2105132555 its reverse (5552315012), we get a palindrome (7657447567).

The spelling of 2105132555 in words is "two billion, one hundred five million, one hundred thirty-two thousand, five hundred fifty-five".