2505543 has 8 divisors (see below), whose sum is σ = 3363456. Its totient is φ = 1659000.

The previous prime is 2505541. The next prime is 2505557. The reversal of 2505543 is 3455052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2505543 - 2¹ = 2505541 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505541) 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, 2313 + ... + 3218.

It is an arithmetic number, because the mean of its divisors is an integer number (420432).

2^2505543 is an apocalyptic number.

2505543 is a deficient number, since it is larger than the sum of its proper divisors (857913).

2505543 is a wasteful number, since it uses less digits than its factorization.

2505543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5685.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 2505543 is about 1582.8907100618. The cubic root of 2505543 is about 135.8211135665.

The spelling of 2505543 in words is "two million, five hundred five thousand, five hundred forty-three".