2543522851 has 4 divisors (see below), whose sum is σ = 2545311712. Its totient is φ = 2541733992.

The previous prime is 2543522801. The next prime is 2543522869. The reversal of 2543522851 is 1582253452.

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-2543522851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2543522851.

It is not an unprimeable number, because it can be changed into a prime (2543522801) 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, 892296 + ... + 895141.

It is an arithmetic number, because the mean of its divisors is an integer number (636327928).

Almost surely, 2^2543522851 is an apocalyptic number.

2543522851 is a deficient number, since it is larger than the sum of its proper divisors (1788861).

2543522851 is a wasteful number, since it uses less digits than its factorization.

2543522851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788860.

The product of its digits is 96000, while the sum is 37.

The square root of 2543522851 is about 50433.3505827245. The cubic root of 2543522851 is about 1365.0394870211.

The spelling of 2543522851 in words is "two billion, five hundred forty-three million, five hundred twenty-two thousand, eight hundred fifty-one".