2543624823 has 4 divisors (see below), whose sum is σ = 3391499768. Its totient is φ = 1695749880.

The previous prime is 2543624821. The next prime is 2543624833. The reversal of 2543624823 is 3284263452.

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

It is not a de Polignac number, because 2543624823 - 2¹ = 2543624821 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 (2543624821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423937468 + ... + 423937473.

It is an arithmetic number, because the mean of its divisors is an integer number (847874942).

Almost surely, 2^2543624823 is an apocalyptic number.

2543624823 is a deficient number, since it is larger than the sum of its proper divisors (847874945).

2543624823 is an equidigital number, since it uses as much as digits as its factorization.

2543624823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847874944.

The product of its digits is 276480, while the sum is 39.

The square root of 2543624823 is about 50434.3615306073. The cubic root of 2543624823 is about 1365.0577286430.

The spelling of 2543624823 in words is "two billion, five hundred forty-three million, six hundred twenty-four thousand, eight hundred twenty-three".