2543345251 has 8 divisors (see below), whose sum is σ = 2606766624. Its totient is φ = 2479990080.

The previous prime is 2543345243. The next prime is 2543345261. The reversal of 2543345251 is 1525433452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2543345251 - 2³ = 2543345243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2543345201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66346 + ... + 97408.

It is an arithmetic number, because the mean of its divisors is an integer number (325845828).

Almost surely, 2^2543345251 is an apocalyptic number.

2543345251 is a deficient number, since it is larger than the sum of its proper divisors (63421373).

2543345251 is a wasteful number, since it uses less digits than its factorization.

2543345251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33101.

The product of its digits is 72000, while the sum is 34.

The square root of 2543345251 is about 50431.5898123389. The cubic root of 2543345251 is about 1365.0077152529.

The spelling of 2543345251 in words is "two billion, five hundred forty-three million, three hundred forty-five thousand, two hundred fifty-one".