2543752 has 8 divisors (see below), whose sum is σ = 4769550. Its totient is φ = 1271872.

The previous prime is 2543747. The next prime is 2543753. The reversal of 2543752 is 2573452.

It can be written as a sum of positive squares in only one way, i.e., 2540836 + 2916 = 1594^2 + 54^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 2¹⁸ + 5² + 4⁸ + 3⁶ + 7² + 5⁹ + 2¹⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 2543752.

It is not an unprimeable number, because it can be changed into a prime (2543753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158977 + ... + 158992.

2^2543752 is an apocalyptic number.

It is an amenable number.

2543752 is a deficient number, since it is larger than the sum of its proper divisors (2225798).

2543752 is a wasteful number, since it uses less digits than its factorization.

2543752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317975 (or 317971 counting only the distinct ones).

The product of its digits is 8400, while the sum is 28.

The square root of 2543752 is about 1594.9144177667. The cubic root of 2543752 is about 136.5080478467.

Subtracting from 2543752 its product of digits (8400), we obtain a palindrome (2535352).

The spelling of 2543752 in words is "two million, five hundred forty-three thousand, seven hundred fifty-two".