2543244553 has 4 divisors (see below), whose sum is σ = 2543345428. Its totient is φ = 2543143680.

The previous prime is 2543244511. The next prime is 2543244559. The reversal of 2543244553 is 3554423452.

2543244553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 812934144 + 1730310409 = 28512^2 + 41597^2 .

It is a cyclic number.

It is not a de Polignac number, because 2543244553 - 2¹³ = 2543236361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2543244559) 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, 24013 + ... + 75253.

It is an arithmetic number, because the mean of its divisors is an integer number (635836357).

Almost surely, 2^2543244553 is an apocalyptic number.

It is an amenable number.

2543244553 is a deficient number, since it is larger than the sum of its proper divisors (100875).

2543244553 is an equidigital number, since it uses as much as digits as its factorization.

2543244553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100874.

The product of its digits is 288000, while the sum is 37.

The square root of 2543244553 is about 50430.5914401170. The cubic root of 2543244553 is about 1364.9897002179.

The spelling of 2543244553 in words is "two billion, five hundred forty-three million, two hundred forty-four thousand, five hundred fifty-three".