2125543000 has 64 divisors (see below), whose sum is σ = 5684328000. Its totient is φ = 728755200.

The previous prime is 2125542941. The next prime is 2125543003. The reversal of 2125543000 is 3455212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125543003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144825 + ... + 158824.

It is an arithmetic number, because the mean of its divisors is an integer number (88817625).

Almost surely, 2^2125543000 is an apocalyptic number.

2125543000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2125543000 is an abundant number, since it is smaller than the sum of its proper divisors (3558785000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2125543000 is a wasteful number, since it uses less digits than its factorization.

2125543000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303677 (or 303663 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 2125543000 is about 46103.6115721968. The cubic root of 2125543000 is about 1285.7502923485.

Adding to 2125543000 its reverse (3455212), we get a palindrome (2128998212).

The spelling of 2125543000 in words is "two billion, one hundred twenty-five million, five hundred forty-three thousand".