2543909425 has 6 divisors (see below), whose sum is σ = 3154447718. Its totient is φ = 2035127520.

The previous prime is 2543909341. The next prime is 2543909443. The reversal of 2543909425 is 5249093452.

2543909425 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 3 ways, for example, as 236452129 + 2307457296 = 15377^2 + 48036^2 .

It is not a de Polignac number, because 2543909425 - 2¹⁷ = 2543778353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50878164 + ... + 50878213.

Almost surely, 2^2543909425 is an apocalyptic number.

2543909425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2543909425 is a deficient number, since it is larger than the sum of its proper divisors (610538293).

2543909425 is a wasteful number, since it uses less digits than its factorization.

2543909425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101756387 (or 101756382 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 2543909425 is about 50437.1829605897. The cubic root of 2543909425 is about 1365.1086380995.

The spelling of 2543909425 in words is "two billion, five hundred forty-three million, nine hundred nine thousand, four hundred twenty-five".