2543452012520 has 16 divisors (see below), whose sum is σ = 5722767028260. Its totient is φ = 1017380804992.

The previous prime is 2543452012459. The next prime is 2543452012523. The reversal of 2543452012520 is 252102543452.

It is a happy number.

2543452012520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2507985330244 + 35466682276 = 1583662^2 + 188326^2 .

It is not an unprimeable number, because it can be changed into a prime (2543452012523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31793150117 + ... + 31793150196.

Almost surely, 2^{2543452012520} is an apocalyptic number.

2543452012520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2543452012520 is an abundant number, since it is smaller than the sum of its proper divisors (3179315015740).

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

2543452012520 is a wasteful number, since it uses less digits than its factorization.

2543452012520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63586300324 (or 63586300320 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 2543452012520 its reverse (252102543452), we get a palindrome (2795554555972).

The spelling of 2543452012520 in words is "two trillion, five hundred forty-three billion, four hundred fifty-two million, twelve thousand, five hundred twenty".