2543526 has 12 divisors (see below), whose sum is σ = 5511012. Its totient is φ = 847836.

The previous prime is 2543509. The next prime is 2543537. The reversal of 2543526 is 6253452.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2543526.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70636 + ... + 70671.

It is an arithmetic number, because the mean of its divisors is an integer number (459251).

2^2543526 is an apocalyptic number.

2543526 is an abundant number, since it is smaller than the sum of its proper divisors (2967486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2543526 is a wasteful number, since it uses less digits than its factorization.

2543526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141315 (or 141312 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 2543526 is about 1594.8435659964. The cubic root of 2543526 is about 136.5040050348.

Adding to 2543526 its reverse (6253452), we get a palindrome (8796978).

The spelling of 2543526 in words is "two million, five hundred forty-three thousand, five hundred twenty-six".