2543502 has 16 divisors (see below), whose sum is σ = 5478480. Its totient is φ = 782592.

The previous prime is 2543479. The next prime is 2543507. The reversal of 2543502 is 2053452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543507) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16227 + ... + 16382.

It is an arithmetic number, because the mean of its divisors is an integer number (342405).

2^2543502 is an apocalyptic number.

2543502 is an abundant number, since it is smaller than the sum of its proper divisors (2934978).

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

2543502 is a wasteful number, since it uses less digits than its factorization.

2543502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32627.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 2543502 is about 1594.8360417297. The cubic root of 2543502 is about 136.5035756956.

Adding to 2543502 its reverse (2053452), we get a palindrome (4596954).

The spelling of 2543502 in words is "two million, five hundred forty-three thousand, five hundred two".