2503523 has 4 divisors (see below), whose sum is σ = 2731128. Its totient is φ = 2275920.

The previous prime is 2503513. The next prime is 2503537. The reversal of 2503523 is 3253052.

2503523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2503523 - 2⁴ = 2503507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2503495 and 2503504.

It is not an unprimeable number, because it can be changed into a prime (2503513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113786 + ... + 113807.

It is an arithmetic number, because the mean of its divisors is an integer number (682782).

2^2503523 is an apocalyptic number.

2503523 is a deficient number, since it is larger than the sum of its proper divisors (227605).

2503523 is a wasteful number, since it uses less digits than its factorization.

2503523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227604.

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 2503523 is about 1582.2525082932. The cubic root of 2503523 is about 135.7846035282.

Adding to 2503523 its reverse (3253052), we get a palindrome (5756575).

It can be divided in two parts, 250 and 3523, that added together give a palindrome (3773).

The spelling of 2503523 in words is "two million, five hundred three thousand, five hundred twenty-three".