2100522543 has 48 divisors (see below), whose sum is σ = 3384322560. Its totient is φ = 1154625024.

The previous prime is 2100522539. The next prime is 2100522559. The reversal of 2100522543 is 3452250012.

It is not a de Polignac number, because 2100522543 - 2² = 2100522539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100522563) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 405055 + ... + 410207.

It is an arithmetic number, because the mean of its divisors is an integer number (70506720).

Almost surely, 2^2100522543 is an apocalyptic number.

2100522543 is a deficient number, since it is larger than the sum of its proper divisors (1283800017).

2100522543 is a wasteful number, since it uses less digits than its factorization.

2100522543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5276 (or 5269 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2100522543 is about 45831.4580064828. The cubic root of 2100522543 is about 1280.6853716834.

Adding to 2100522543 its reverse (3452250012), we get a palindrome (5552772555).

The spelling of 2100522543 in words is "two billion, one hundred million, five hundred twenty-two thousand, five hundred forty-three".