2543553011 has 4 divisors (see below), whose sum is σ = 2574198312. Its totient is φ = 2512907712.

The previous prime is 2543552989. The next prime is 2543553013. The reversal of 2543553011 is 1103553452.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2543553011 is a prime.

It is a super-2 number, since 2×2543553011² = 12939323839534332242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2543553013) 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, 15322526 + ... + 15322691.

It is an arithmetic number, because the mean of its divisors is an integer number (643549578).

Almost surely, 2^2543553011 is an apocalyptic number.

2543553011 is a deficient number, since it is larger than the sum of its proper divisors (30645301).

2543553011 is an equidigital number, since it uses as much as digits as its factorization.

2543553011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30645300.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 2543553011 is about 50433.6495903281. The cubic root of 2543553011 is about 1365.0448823502.

The spelling of 2543553011 in words is "two billion, five hundred forty-three million, five hundred fifty-three thousand, eleven".