2543522500 has 60 divisors (see below), whose sum is σ = 5680781568. Its totient is φ = 995716000.

The previous prime is 2543522477. The next prime is 2543522557. The reversal of 2543522500 is 52253452.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 106677 + ... + 128323.

Almost surely, 2^2543522500 is an apocalyptic number.

2543522500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2543522500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2840390784).

2543522500 is an abundant number, since it is smaller than the sum of its proper divisors (3137259068).

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

2543522500 is a wasteful number, since it uses less digits than its factorization.

2543522500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21718 (or 21701 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 2543522500 is about 50433.3471028842. The cubic root of 2543522500 is about 1365.0394242304.

Adding to 2543522500 its reverse (52253452), we get a palindrome (2595775952).

The spelling of 2543522500 in words is "two billion, five hundred forty-three million, five hundred twenty-two thousand, five hundred".