2523204643 has 4 divisors (see below), whose sum is σ = 2549217160. Its totient is φ = 2497192128.

The previous prime is 2523204641. The next prime is 2523204647. The reversal of 2523204643 is 3464023252.

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 2523204643 - 2¹ = 2523204641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2523204641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13006113 + ... + 13006306.

It is an arithmetic number, because the mean of its divisors is an integer number (637304290).

Almost surely, 2^2523204643 is an apocalyptic number.

2523204643 is a deficient number, since it is larger than the sum of its proper divisors (26012517).

2523204643 is an equidigital number, since it uses as much as digits as its factorization.

2523204643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26012516.

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 2523204643 is about 50231.5104590734. The cubic root of 2523204643 is about 1361.3950223919.

Adding to 2523204643 its reverse (3464023252), we get a palindrome (5987227895).

The spelling of 2523204643 in words is "two billion, five hundred twenty-three million, two hundred four thousand, six hundred forty-three".