2543582 has 4 divisors (see below), whose sum is σ = 3815376. Its totient is φ = 1271790.

The previous prime is 2543573. The next prime is 2543609. The reversal of 2543582 is 2853452.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635894 + ... + 635897.

It is an arithmetic number, because the mean of its divisors is an integer number (953844).

2^2543582 is an apocalyptic number.

2543582 is a deficient number, since it is larger than the sum of its proper divisors (1271794).

2543582 is a wasteful number, since it uses less digits than its factorization.

2543582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271793.

The product of its digits is 9600, while the sum is 29.

The square root of 2543582 is about 1594.8611224806. The cubic root of 2543582 is about 136.5050068159.

It can be divided in two parts, 2543 and 582, that added together give a 5-th power (3125 = 5⁵).

The spelling of 2543582 in words is "two million, five hundred forty-three thousand, five hundred eighty-two".