2543536 has 20 divisors (see below), whose sum is σ = 5044072. Its totient is φ = 1241856.

The previous prime is 2543509. The next prime is 2543537. The reversal of 2543536 is 6353452.

It is a d-powerful number, because it can be written as 2¹⁹ + 5³ + 4⁸ + 3 + 5⁹ + 3⁵ + 6³ .

It is not an unprimeable number, because it can be changed into a prime (2543537) 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, 1161 + ... + 2536.

2^2543536 is an apocalyptic number.

It is an amenable number.

2543536 is a deficient number, since it is larger than the sum of its proper divisors (2500536).

2543536 is a wasteful number, since it uses less digits than its factorization.

2543536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3748 (or 3742 counting only the distinct ones).

The product of its digits is 10800, while the sum is 28.

The square root of 2543536 is about 1594.8467010970. The cubic root of 2543536 is about 136.5041839254.

Adding to 2543536 its reverse (6353452), we get a palindrome (8896988).

The spelling of 2543536 in words is "two million, five hundred forty-three thousand, five hundred thirty-six".