2541523 has 4 divisors (see below), whose sum is σ = 2652048. Its totient is φ = 2431000.

The previous prime is 2541503. The next prime is 2541527. The reversal of 2541523 is 3251452.

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

It is a cyclic number.

It is not a de Polignac number, because 2541523 - 2¹³ = 2533331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2541494 and 2541503.

It is not an unprimeable number, because it can be changed into a prime (2541527) 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 3 ways as a sum of consecutive naturals, for example, 55228 + ... + 55273.

It is an arithmetic number, because the mean of its divisors is an integer number (663012).

2^2541523 is an apocalyptic number.

2541523 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2541523 is a deficient number, since it is larger than the sum of its proper divisors (110525).

2541523 is a wasteful number, since it uses less digits than its factorization.

2541523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110524.

The product of its digits is 1200, while the sum is 22.

The square root of 2541523 is about 1594.2154810439. The cubic root of 2541523 is about 136.4681638018.

Adding to 2541523 its reverse (3251452), we get a palindrome (5792975).

The spelling of 2541523 in words is "two million, five hundred forty-one thousand, five hundred twenty-three".