2545510243 has 4 divisors (see below), whose sum is σ = 2546296488. Its totient is φ = 2544724000.

The previous prime is 2545510241. The next prime is 2545510267. The reversal of 2545510243 is 3420155452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2545510243 - 2¹ = 2545510241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2545510241) 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 3 ways as a sum of consecutive naturals, for example, 388246 + ... + 394747.

It is an arithmetic number, because the mean of its divisors is an integer number (636574122).

Almost surely, 2^2545510243 is an apocalyptic number.

2545510243 is a deficient number, since it is larger than the sum of its proper divisors (786245).

2545510243 is an equidigital number, since it uses as much as digits as its factorization.

2545510243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786244.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2545510243 is about 50453.0498879899. The cubic root of 2545510243 is about 1365.3949208625.

Adding to 2545510243 its reverse (3420155452), we get a palindrome (5965665695).

The spelling of 2545510243 in words is "two billion, five hundred forty-five million, five hundred ten thousand, two hundred forty-three".