2543893522 has 4 divisors (see below), whose sum is σ = 3815840286. Its totient is φ = 1271946760.

The previous prime is 2543893423. The next prime is 2543893529. The reversal of 2543893522 is 2253983452.

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

It can be written as a sum of positive squares in only one way, i.e., 1357848801 + 1186044721 = 36849^2 + 34439^2 .

It is not an unprimeable number, because it can be changed into a prime (2543893529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635973379 + ... + 635973382.

Almost surely, 2^2543893522 is an apocalyptic number.

2543893522 is a deficient number, since it is larger than the sum of its proper divisors (1271946764).

2543893522 is a wasteful number, since it uses less digits than its factorization.

2543893522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271946763.

The product of its digits is 518400, while the sum is 43.

The square root of 2543893522 is about 50437.0253087947. The cubic root of 2543893522 is about 1365.1057934793.

The spelling of 2543893522 in words is "two billion, five hundred forty-three million, eight hundred ninety-three thousand, five hundred twenty-two".