2543538429 has 10 divisors (see below), whose sum is σ = 3799606910. Its totient is φ = 1695692232.

The previous prime is 2543538407. The next prime is 2543538461. The reversal of 2543538429 is 9248353452.

2543538429 is a `hidden beast` number, since 2 + 543 + 5 + 3 + 84 + 29 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2542882329 + 656100 = 50427^2 + 810^2 .

It is not a de Polignac number, because 2543538429 - 2⁹ = 2543537917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543534429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 15700774 + ... + 15700935.

It is an arithmetic number, because the mean of its divisors is an integer number (379960691).

Almost surely, 2^2543538429 is an apocalyptic number.

It is an amenable number.

2543538429 is a deficient number, since it is larger than the sum of its proper divisors (1256068481).

2543538429 is an equidigital number, since it uses as much as digits as its factorization.

2543538429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31401721 (or 31401712 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The square root of 2543538429 is about 50433.5050239422. The cubic root of 2543538429 is about 1365.0422737783.

The spelling of 2543538429 in words is "two billion, five hundred forty-three million, five hundred thirty-eight thousand, four hundred twenty-nine".