2143525256 has 32 divisors (see below), whose sum is σ = 4291833600. Its totient is φ = 1001421120.

The previous prime is 2143525247. The next prime is 2143525259. The reversal of 2143525256 is 6525253412.

It is not an unprimeable number, because it can be changed into a prime (2143525259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141830 + ... + 156213.

It is an arithmetic number, because the mean of its divisors is an integer number (134119800).

Almost surely, 2^2143525256 is an apocalyptic number.

It is an amenable number.

2143525256 is an abundant number, since it is smaller than the sum of its proper divisors (2148308344).

2143525256 is a wasteful number, since it uses less digits than its factorization.

2143525256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298109 (or 298105 counting only the distinct ones).

The product of its digits is 72000, while the sum is 35.

The square root of 2143525256 is about 46298.2208729450. The cubic root of 2143525256 is about 1289.3659636855.

Adding to 2143525256 its reverse (6525253412), we get a palindrome (8668778668).

The spelling of 2143525256 in words is "two billion, one hundred forty-three million, five hundred twenty-five thousand, two hundred fifty-six".