2543534 has 16 divisors (see below), whose sum is σ = 4407648. Its totient is φ = 1078272.

The previous prime is 2543509. The next prime is 2543537. The reversal of 2543534 is 4353452.

It is a d-powerful number, because it can be written as 2²⁰ + 5⁸ + 4⁵ + 3¹¹ + 5⁸ + 3¹² + 4⁶ .

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 422 + ... + 2294.

It is an arithmetic number, because the mean of its divisors is an integer number (275478).

2^2543534 is an apocalyptic number.

2543534 is a deficient number, since it is larger than the sum of its proper divisors (1864114).

2543534 is a wasteful number, since it uses less digits than its factorization.

2543534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979.

The product of its digits is 7200, while the sum is 26.

The square root of 2543534 is about 1594.8460740774. The cubic root of 2543534 is about 136.5041481473.

Adding to 2543534 its reverse (4353452), we get a palindrome (6896986).

The spelling of 2543534 in words is "two million, five hundred forty-three thousand, five hundred thirty-four".