2543553115 has 4 divisors (see below), whose sum is σ = 3052263744. Its totient is φ = 2034842488.

The previous prime is 2543553113. The next prime is 2543553127. The reversal of 2543553115 is 5113553452.

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 2543553115 - 2¹ = 2543553113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2543553113) 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, 254355307 + ... + 254355316.

It is an arithmetic number, because the mean of its divisors is an integer number (763065936).

Almost surely, 2^2543553115 is an apocalyptic number.

2543553115 is a deficient number, since it is larger than the sum of its proper divisors (508710629).

2543553115 is an equidigital number, since it uses as much as digits as its factorization.

2543553115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508710628.

The product of its digits is 45000, while the sum is 34.

The square root of 2543553115 is about 50433.6506213857. The cubic root of 2543553115 is about 1365.0449009547.

The spelling of 2543553115 in words is "two billion, five hundred forty-three million, five hundred fifty-three thousand, one hundred fifteen".