2543325525 has 72 divisors (see below), whose sum is σ = 4928512680. Its totient is φ = 1246302720.

The previous prime is 2543325517. The next prime is 2543325527. The reversal of 2543325525 is 5255233452.

2543325525 is a `hidden beast` number, since 254 + 332 + 55 + 25 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 1321613316 + 1221712209 = 36354^2 + 34953^2 .

It is not a de Polignac number, because 2543325525 - 2³ = 2543325517 is a prime.

It is a super-2 number, since 2×2543325525² = 12937009452233051250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2543325525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543325527) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 667927 + ... + 671723.

It is an arithmetic number, because the mean of its divisors is an integer number (68451565).

Almost surely, 2^2543325525 is an apocalyptic number.

2543325525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2543325525 is a deficient number, since it is larger than the sum of its proper divisors (2385187155).

2543325525 is a wasteful number, since it uses less digits than its factorization.

2543325525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4055 (or 4047 counting only the distinct ones).

The product of its digits is 180000, while the sum is 36.

The square root of 2543325525 is about 50431.3942400961. The cubic root of 2543325525 is about 1365.0041862771.

Adding to 2543325525 its reverse (5255233452), we get a palindrome (7798558977).

The spelling of 2543325525 in words is "two billion, five hundred forty-three million, three hundred twenty-five thousand, five hundred twenty-five".